File 2556-crypto-pkey.c-error-ERR-error-ERR-FileInfo... of Package erlang

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File 2556-crypto-pkey.c-error-ERR-error-ERR-FileInfo-Descripti.patch of Package erlang (Revision 141dc5cf1cf76598898fdde76784937f)

Currently displaying revision 141dc5cf1cf76598898fdde76784937f , Show latest

From b70d8ad394b85e453a263b4c0d4f267fd75629b3 Mon Sep 17 00:00:00 2001
From: Hans Nilsson <hans@erlang.org>
Date: Fri, 11 Mar 2022 17:56:52 +0100
Subject: [PATCH 6/8] crypto: pkey.c error:ERR ->
 error:{ERR,FileInfo,Description}

---
 lib/crypto/c_src/pkey.c          | 939 +++++++++++++++----------------
 lib/crypto/doc/src/crypto.xml    |   6 +
 lib/crypto/src/crypto.erl        |  31 +-
 lib/crypto/test/crypto_SUITE.erl |  19 +-
 lib/crypto/test/engine_SUITE.erl |   2 +-
 5 files changed, 470 insertions(+), 527 deletions(-)

diff --git a/lib/crypto/c_src/pkey.c b/lib/crypto/c_src/pkey.c
index 0423fbd470..59632d86d3 100644
--- a/lib/crypto/c_src/pkey.c
+++ b/lib/crypto/c_src/pkey.c
@@ -27,10 +27,6 @@
 #include "engine.h"
 #include "rsa.h"
 
-#define PKEY_BADARG -1
-#define PKEY_NOTSUP 0
-#define PKEY_OK 1
-
 typedef struct PKeyCryptOptions {
 const EVP_MD *rsa_mgf1_md;
 ErlNifBinary rsa_oaep_label;
@@ -46,7 +42,11 @@ typedef struct PKeySignOptions {
 } PKeySignOptions;
 
 
-static int get_pkey_digest_type(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM type,
+static int check_pkey_algorithm_type(ErlNifEnv *env,
+ int alg_arg_num, ERL_NIF_TERM algorithm,
+ ERL_NIF_TERM *err_return);
+static int get_pkey_digest_type(ErlNifEnv *env, ERL_NIF_TERM algorithm,
+ int type_arg_num, ERL_NIF_TERM type,
 				const EVP_MD **md,
 ERL_NIF_TERM *err_return);
 static int get_pkey_sign_digest(ErlNifEnv *env,
@@ -60,9 +60,16 @@ static int get_pkey_sign_options(ErlNifEnv *env,
 int algorithm_arg_num, int options_arg_num,
 const EVP_MD *md, PKeySignOptions *opt,
 ERL_NIF_TERM *err_return);
-static int get_pkey_private_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key, EVP_PKEY **pkey);
-static int get_pkey_public_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key,
-			 EVP_PKEY **pkey);
+static int get_pkey_private_key(ErlNifEnv *env,
+ const ERL_NIF_TERM argv[],
+ int algorithm_arg_num, int key_arg_num,
+			 EVP_PKEY **pkey,
+ ERL_NIF_TERM *err_return);
+static int get_pkey_public_key(ErlNifEnv *env,
+ const ERL_NIF_TERM argv[],
+ int algorithm_arg_num, int key_arg_num,
+			 EVP_PKEY **pkey,
+ ERL_NIF_TERM *err_return);
 static int get_pkey_crypt_options(ErlNifEnv *env,
 const ERL_NIF_TERM argv[],
 int algorithm_arg_num, int options_arg_num,
@@ -72,7 +79,47 @@ static int get_pkey_crypt_options(ErlNifEnv *env,
 static size_t size_of_RSA(EVP_PKEY *pkey);
 #endif
 
-static int get_pkey_digest_type(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM type,
+static int check_pkey_algorithm_type(ErlNifEnv *env,
+ int alg_arg_num, ERL_NIF_TERM algorithm,
+ ERL_NIF_TERM *err_return)
+{
+ if (
+#ifndef HAVE_EDDSA
+ (algorithm == atom_eddsa) ||
+#endif
+
+#ifndef HAVE_DSA
+ (algorithm == atom_dss) ||
+#endif
+
+#ifndef HAVE_EC
+ (algorithm == atom_ecdsa) ||
+#endif
+ 0)
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, alg_arg_num, "Unsupported algorithm"));
+ 
+
+#ifdef HAVE_EDDSA
+ if (FIPS_MODE())
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, alg_arg_num, "Unsupported algorithm in FIPS mode"));
+#endif 
+
+ if ((algorithm != atom_rsa) &&
+ (algorithm != atom_dss) &&
+ (algorithm != atom_ecdsa) &&
+ (algorithm != atom_eddsa)
+ )
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, alg_arg_num, "Bad algorithm"));
+
+ return 1;
+
+ err:
+ return 0;
+}
+
+
+static int get_pkey_digest_type(ErlNifEnv *env, ERL_NIF_TERM algorithm,
+ int type_arg_num, ERL_NIF_TERM type,
 				const EVP_MD **md,
 ERL_NIF_TERM *err_return)
 {
@@ -80,23 +127,25 @@ static int get_pkey_digest_type(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_
 *md = NULL;
 
 if (type == atom_none && algorithm == atom_rsa)
- return PKEY_OK;
- if (algorithm == atom_eddsa) {
-#ifdef HAVE_EDDSA
- if (!FIPS_MODE()) return PKEY_OK;
-#else
- return PKEY_NOTSUP;
-#endif
- }
+ return 1;
+
+ if (type == atom_undefined && algorithm == atom_eddsa)
+ return 1;
+ 
 if ((digp = get_digest_type(type)) == NULL)
- return PKEY_BADARG;
+ assign_goto(*err_return, notsup, EXCP_BADARG_N(env, type_arg_num, "Bad digest type"));
+
 if (DIGEST_FORBIDDEN_IN_FIPS(digp))
- return PKEY_NOTSUP;
+ assign_goto(*err_return, notsup, EXCP_BADARG_N(env, type_arg_num, "Digest type forbidden in FIPS"));
+
 if (digp->md.p == NULL)
- return PKEY_NOTSUP;
+ assign_goto(*err_return, notsup, EXCP_BADARG_N(env, type_arg_num, "Digest type not supported"));
 
 *md = digp->md.p;
- return PKEY_OK;
+ return 1;
+
+ notsup:
+ return 0;
 }
 
 static int get_pkey_sign_digest(ErlNifEnv *env,
@@ -106,7 +155,7 @@ static int get_pkey_sign_digest(ErlNifEnv *env,
 				unsigned char **tbsp, size_t *tbslenp,
 ERL_NIF_TERM *err_return)
 {
- int i, ret;
+ int ret;
 const ERL_NIF_TERM *tpl_terms;
 int tpl_arity;
 ErlNifBinary tbs_bin;
@@ -120,21 +169,26 @@ static int get_pkey_sign_digest(ErlNifEnv *env,
 tbs = *tbsp;
 tbslen = *tbslenp;
 
- if ((i = get_pkey_digest_type(env, argv[algorithm_arg_num], argv[type_arg_num], &md, err_return)) != PKEY_OK)
- return i;
+ if (!check_pkey_algorithm_type(env, algorithm_arg_num, argv[algorithm_arg_num], err_return))
+ goto err; /* An exception is present in ret */
+ 
+ if (!get_pkey_digest_type(env, argv[algorithm_arg_num],
+ type_arg_num, argv[type_arg_num],
+ &md, err_return))
+ goto err; /* An exception is present in ret */
 
 if (enif_get_tuple(env, argv[data_arg_num], &tpl_arity, &tpl_terms)) {
 if (tpl_arity != 2)
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Bad list"));
 if (tpl_terms[0] != atom_digest)
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Expected 'digest' as head"));
 if (!enif_inspect_iolist_as_binary(env, tpl_terms[1], &tbs_bin))
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Bad 2nd element in list"));
 if (tbs_bin.size > INT_MAX)
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Too large binary"));
 if (md != NULL) {
 if ((int)tbs_bin.size != EVP_MD_size(md))
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Bad binary size for the algorithm"));
 }
 
 /* We have a digest (= hashed text) in tbs_bin */
@@ -142,28 +196,28 @@ static int get_pkey_sign_digest(ErlNifEnv *env,
 	tbslen = tbs_bin.size;
 } else if (md == NULL) {
 if (!enif_inspect_iolist_as_binary(env, argv[data_arg_num], &tbs_bin))
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Expected a binary or a list"));
 
 /* md == NULL, that is no hashing because DigestType argument was atom_none */
 	tbs = tbs_bin.data;
 	tbslen = tbs_bin.size;
 } else {
 if (!enif_inspect_iolist_as_binary(env, argv[data_arg_num], &tbs_bin))
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, data_arg_num, "Expected a binary or a list"));
 
 /* We have the cleartext in tbs_bin and the hash algo info in md */
 	tbs = md_value;
 
 if ((mdctx = EVP_MD_CTX_create()) == NULL)
- goto err;
+ assign_goto(*err_return, err, EXCP_ERROR(env, "Can't create MD_CTX"));
 
 /* Looks well, now hash the plain text into a digest according to md */
 if (EVP_DigestInit_ex(mdctx, md, NULL) != 1)
- goto err;
+ assign_goto(*err_return, err, EXCP_ERROR(env, "Can't create EVP_DigestInit_ex"));
 if (EVP_DigestUpdate(mdctx, tbs_bin.data, tbs_bin.size) != 1)
- goto err;
+ assign_goto(*err_return, err, EXCP_ERROR(env, "Can't create EVP_DigestUpdate"));
 if (EVP_DigestFinal_ex(mdctx, tbs, &tbsleni) != 1)
- goto err;
+ assign_goto(*err_return, err, EXCP_ERROR(env, "Can't create EVP_DigestFinal_ex"));
 
 tbslen = (size_t)tbsleni;
 }
@@ -172,13 +226,11 @@ static int get_pkey_sign_digest(ErlNifEnv *env,
 *tbsp = tbs;
 *tbslenp = tbslen;
 
- ret = PKEY_OK;
+ ret = 1;
 goto done;
 
- bad_arg:
 err:
- ret = PKEY_BADARG;
-
+ ret = 0;
 done:
 if (mdctx)
 EVP_MD_CTX_destroy(mdctx);
@@ -197,7 +249,7 @@ static int get_pkey_sign_options(ErlNifEnv *env,
 const EVP_MD *opt_md;
 
 if (!enif_is_list(env, argv[options_arg_num]))
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Expected a list"));
 
 /* defaults */
 if (argv[algorithm_arg_num] == atom_rsa) {
@@ -211,25 +263,26 @@ static int get_pkey_sign_options(ErlNifEnv *env,
 }
 
 if (enif_is_empty_list(env, argv[options_arg_num]))
-	return PKEY_OK;
+	return 1;
 
 if (argv[algorithm_arg_num] != atom_rsa)
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Only RSA supports Options"));
 
 tail = argv[options_arg_num];
 while (enif_get_list_cell(env, tail, &head, &tail)) {
- if (!enif_get_tuple(env, head, &tpl_arity, &tpl_terms))
- goto bad_arg;
- if (tpl_arity != 2)
- goto bad_arg;
-
- if (tpl_terms[0] == atom_rsa_mgf1_md && enif_is_atom(env, tpl_terms[1])) {
- int result;
-
- result = get_pkey_digest_type(env, argv[algorithm_arg_num], tpl_terms[1], &opt_md, err_return);
- if (result != PKEY_OK)
- return result;
-
+ if (!enif_get_tuple(env, head, &tpl_arity, &tpl_terms) ||
+ (tpl_arity != 2))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Expects only two-tuples in the list"));
+
+ if (tpl_terms[0] == atom_rsa_mgf1_md) {
+ if (!enif_is_atom(env, tpl_terms[1]))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Atom expected as argument to option rsa_mgf1_md"));
+
+ if (!get_pkey_digest_type(env, argv[algorithm_arg_num],
+ options_arg_num, tpl_terms[1],
+ &opt_md, err_return))
+ goto err; /* An exception is present in ret */
+ 
 opt->rsa_mgf1_md = opt_md;
 
 } else if (tpl_terms[0] == atom_rsa_padding) {
@@ -242,7 +295,7 @@ static int get_pkey_sign_options(ErlNifEnv *env,
 if (opt->rsa_mgf1_md == NULL)
 opt->rsa_mgf1_md = md;
 #else
- return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, options_arg_num, "rsa_pkcs1_pss_padding not supported"));
 #endif
 
 } else if (tpl_terms[1] == atom_rsa_x931_padding) {
@@ -252,157 +305,163 @@ static int get_pkey_sign_options(ErlNifEnv *env,
 opt->rsa_padding = RSA_NO_PADDING;
 
 } else {
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Bad value in option rsa_padding"));
 }
 
 } else if (tpl_terms[0] == atom_rsa_pss_saltlen) {
- if (!enif_get_int(env, tpl_terms[1], &(opt->rsa_pss_saltlen)))
- goto bad_arg;
- if (opt->rsa_pss_saltlen < -2)
- goto bad_arg;
+ if (!enif_get_int(env, tpl_terms[1], &(opt->rsa_pss_saltlen)) ||
+ (opt->rsa_pss_saltlen < -2) )
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Bad value in option rsa_pss_saltlen"));
 
 } else {
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Bad option"));
 }
 }
 
- return PKEY_OK;
+ return 1;
 
- bad_arg:
- return PKEY_BADARG;
+ err:
+ return 0;
 }
 
-static int get_pkey_private_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key, EVP_PKEY **pkey)
+static int get_pkey_private_key(ErlNifEnv *env,
+ const ERL_NIF_TERM argv[],
+ int algorithm_arg_num, int key_arg_num,
+			 EVP_PKEY **pkey,
+ ERL_NIF_TERM *err_return)
 {
 char *id = NULL;
 char *password = NULL;
+ int ret;
 
- if (enif_is_map(env, key)) {
+ if (enif_is_map(env, argv[key_arg_num])) {
 #ifdef HAS_ENGINE_SUPPORT
 /* Use key stored in engine */
 ENGINE *e;
 
- if (!get_engine_and_key_id(env, key, &id, &e))
- goto err;
+ if (!get_engine_and_key_id(env, argv[key_arg_num], &id, &e))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get engine and/or key id"));
 
- password = get_key_password(env, key);
+ password = get_key_password(env, argv[key_arg_num]);
 *pkey = ENGINE_load_private_key(e, id, NULL, password);
-
+ if (!*pkey)
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get private key from engine"));
 #else
- return PKEY_BADARG;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "No engine support"));
 #endif
 
- } else if (algorithm == atom_rsa) {
- if (!get_rsa_private_key(env, key, pkey))
- goto err;
+ } else if (argv[algorithm_arg_num] == atom_rsa) {
+ if (!get_rsa_private_key(env, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get RSA private key"));
 
- } else if (algorithm == atom_ecdsa) {
+ } else if (argv[algorithm_arg_num] == atom_ecdsa) {
 #if defined(HAVE_EC)
- if (!get_ec_private_key(env, key, pkey))
- goto err;
+ if (!get_ec_private_key(env, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get ECDSA private key"));
 #else
-	return PKEY_NOTSUP;
+	assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "ECDSA not supported"));
 #endif
 
- } else if (algorithm == atom_eddsa) {
+ } else if (argv[algorithm_arg_num] == atom_eddsa) {
 #ifdef HAVE_EDDSA
- if (FIPS_MODE())
- return PKEY_NOTSUP;
- if (!get_eddsa_key(env, 0, key, pkey))
- goto err;
+ if (!FIPS_MODE()) {
+ if (!get_eddsa_key(env, 0, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get EDDSA private key"));
+ } else
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "EDDSA not supported in FIPS mode"));
 #else
- return PKEY_NOTSUP;
-#endif
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "EDDSA not supported"));
+#endif 
 
- } else if (algorithm == atom_dss) {
+ } else if (argv[algorithm_arg_num] == atom_dss) {
 #ifdef HAVE_DSA
- if (!get_dss_private_key(env, key, pkey))
- goto err;
+ if (!get_dss_private_key(env, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get DSA private key"));
 #else
- return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "DSA not supported"));
 #endif
 
 } else
-	return PKEY_BADARG;
-
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, algorithm_arg_num, "Bad algorithm")); 
 
- free_and_return:
+ ret = 1;
+ done:
 if (password)
 enif_free(password);
 if (id)
 enif_free(id);
 
- if (*pkey == NULL) {
- return PKEY_BADARG;
- } else {
- *pkey = *pkey;
- return PKEY_OK;
- }
+ return ret;
 
 err:
 if (*pkey)
 EVP_PKEY_free(*pkey);
 *pkey = NULL;
- goto free_and_return;
+ ret = 0;
+ goto done;
 }
 
 
-static int get_pkey_public_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key,
-			 EVP_PKEY **pkey)
+static int get_pkey_public_key(ErlNifEnv *env,
+ const ERL_NIF_TERM argv[],
+ int algorithm_arg_num, int key_arg_num,
+			 EVP_PKEY **pkey,
+ ERL_NIF_TERM *err_return)
 {
 char *id = NULL;
 char *password = NULL;
+ int ret;
 
- if (enif_is_map(env, key)) {
+ if (enif_is_map(env, argv[key_arg_num])) {
 #ifdef HAS_ENGINE_SUPPORT
 /* Use key stored in engine */
 ENGINE *e;
 
- if (!get_engine_and_key_id(env, key, &id, &e))
- goto err;
+ if (!get_engine_and_key_id(env, argv[key_arg_num], &id, &e))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get engine and/or key id"));
 
- password = get_key_password(env, key);
+ password = get_key_password(env, argv[key_arg_num]);
 *pkey = ENGINE_load_public_key(e, id, NULL, password);
+ if (!pkey)
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get public key from engine"));
 #else
- return PKEY_BADARG;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "No engine support"));
 #endif
- } else if (algorithm == atom_rsa) {
- if (!get_rsa_public_key(env, key, pkey))
- goto err;
 
- } else if (algorithm == atom_ecdsa) {
+ } else if (argv[algorithm_arg_num] == atom_rsa) {
+ if (!get_rsa_public_key(env, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get RSA public key"));
+
+ } else if (argv[algorithm_arg_num] == atom_ecdsa) {
 #if defined(HAVE_EC)
- if (!get_ec_public_key(env, key, pkey))
- goto err;
+ if (!get_ec_public_key(env, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get ECDSA public key"));
 #else
-	return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "ECDSA not supported"));
 #endif
- } else if (algorithm == atom_eddsa) {
+
+ } else if (argv[algorithm_arg_num] == atom_eddsa) {
 #ifdef HAVE_EDDSA
 if (!FIPS_MODE()) {
- if (!get_eddsa_key(env, 1, key, pkey))
- goto err;
- }
+ if (!get_eddsa_key(env, 1, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get EDDSA public key"));
+ } else
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "EDDSA not supported in FIPS mode"));
 #else
-	return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "EDDSA not supported"));
 #endif
- } else if (algorithm == atom_dss) {
+
+ } else if (argv[algorithm_arg_num] == atom_dss) {
 #ifdef HAVE_DSA
- if (!get_dss_public_key(env, key, pkey))
- goto err;
+ if (!get_dss_public_key(env, argv[key_arg_num], pkey))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, key_arg_num, "Couldn't get DSA public key"));
 #else
- return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, algorithm_arg_num, "DSA not supported"));
 #endif
- } else {
-	return PKEY_BADARG;
- }
-
- goto done;
+ } else
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, algorithm_arg_num, "Bad algorithm"));
 
- err:
- if (*pkey)
- EVP_PKEY_free(*pkey);
- *pkey = NULL;
+ ret = 1;
 
 done:
 if (password)
@@ -410,16 +469,18 @@ static int get_pkey_public_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_T
 if (id)
 enif_free(id);
 
- if (*pkey == NULL)
- return PKEY_BADARG;
- else
- return PKEY_OK;
+ return ret;
 
+ err:
+ if (*pkey)
+ EVP_PKEY_free(*pkey);
+ *pkey = NULL;
+ ret = 0;
+ goto done;
 }
 
 ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 {/* (Algorithm, Type, Data|{digest,Digest}, Key|#{}, Options) */
- int i;
 int sig_bin_alloc = 0;
 ERL_NIF_TERM ret = atom_undefined;
 const EVP_MD *md = NULL;
@@ -446,61 +507,47 @@ ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 
 #ifndef HAS_ENGINE_SUPPORT
 if (enif_is_map(env, argv[3]))
- return atom_notsup;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "No engine support"));
 #endif
- i = get_pkey_sign_digest(env, argv, 0, 1, 2, md_value, &md, &tbs, &tbslen, &ret);
- switch (i) {
- case PKEY_OK:
- break;
- case PKEY_NOTSUP:
- goto notsup;
- default:
- goto bad_arg;
- }
+ if (!get_pkey_sign_digest(env, argv, 0, 1, 2, md_value, &md, &tbs, &tbslen, &ret))
+ goto err; /* An exception is present in ret */
 
- i = get_pkey_sign_options(env, argv, 0, 4, md, &sig_opt, &ret);
- switch (i) {
- case PKEY_OK:
- break;
- case PKEY_NOTSUP:
- goto notsup;
- default:
- goto bad_arg;
- }
+ if (!get_pkey_sign_options(env, argv, 0, 4, md, &sig_opt, &ret))
+ goto err; /* An exception is present in ret */
 
 #ifdef HAS_EVP_PKEY_CTX
 { /* EVP_MD_CTX */
- if (get_pkey_private_key(env, argv[0], argv[3], &pkey) != PKEY_OK)
- goto bad_arg;
+ if (!get_pkey_private_key(env, argv, 0, 3, &pkey, &ret))
+ goto err; /* An exception is present in ret */
 
 if ((ctx = EVP_PKEY_CTX_new(pkey, NULL)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate new EVP_PKEY_CTX"));
 
 if (argv[0] != atom_eddsa) {
 if (EVP_PKEY_sign_init(ctx) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_sign_init"));
 if (md != NULL) {
 if (EVP_PKEY_CTX_set_signature_md(ctx, md) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_signature_md"));
 }
 }
 
 if (argv[0] == atom_rsa) {
 if (EVP_PKEY_CTX_set_rsa_padding(ctx, sig_opt.rsa_padding) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_rsa_padding"));
 # ifdef HAVE_RSA_PKCS1_PSS_PADDING
 if (sig_opt.rsa_padding == RSA_PKCS1_PSS_PADDING) {
 if (sig_opt.rsa_mgf1_md != NULL) {
 # ifdef HAVE_RSA_MGF1_MD
 if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, sig_opt.rsa_mgf1_md) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_rsa_mgf1_md"));
 # else
- goto notsup;
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 4, "rsa_mgf1_md unavailable with this cryptolib"));
 # endif
 }
 if (sig_opt.rsa_pss_saltlen > -2) {
 if (EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, sig_opt.rsa_pss_saltlen) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 4, "Bad rsa_pss_saltlen"));
 }
 }
 # endif
@@ -511,65 +558,58 @@ ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 if (!FIPS_MODE()) {
 EVP_MD_CTX *mdctx = NULL;
 if ((mdctx = EVP_MD_CTX_new()) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_MD_CTX_new"));
 
 if (EVP_DigestSignInit(mdctx, NULL, NULL, NULL, pkey) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_DigestSignInit"));
 if (EVP_DigestSign(mdctx, NULL, &siglen, tbs, tbslen) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_DigestSign"));
 if (!enif_alloc_binary(siglen, &sig_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 sig_bin_alloc = 1;
 
 if (EVP_DigestSign(mdctx, sig_bin.data, &siglen, tbs, tbslen) != 1) {
 if (mdctx)
 EVP_MD_CTX_free(mdctx);
- goto bad_key;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_DigestSign"));
 }
 if (mdctx)
 EVP_MD_CTX_free(mdctx);
 }
 else
 # endif
- goto notsup;
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 0, "eddsa not supported"));
+ } else {
+
+# ifndef HAVE_DSA
+ if (argv[0] == atom_dss) assign_goto(ret, err, EXCP_NOTSUP_N(env, 0, "dsa not supported"));
 } else {
+# endif
 if (EVP_PKEY_sign(ctx, NULL, &siglen, tbs, tbslen) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_sign"));
+
 if (!enif_alloc_binary(siglen, &sig_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 sig_bin_alloc = 1;
 
 if (md != NULL) {
 ERL_VALGRIND_ASSERT_MEM_DEFINED(tbs, EVP_MD_size(md));
 }
 if (EVP_PKEY_sign(ctx, sig_bin.data, &siglen, tbs, tbslen) != 1)
- goto bad_key;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_sign"));
 }
 
 ERL_VALGRIND_MAKE_MEM_DEFINED(sig_bin.data, siglen);
 if (siglen != sig_bin.size) {
 if (!enif_realloc_binary(&sig_bin, siglen))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't reallocate binary"));
 ERL_VALGRIND_ASSERT_MEM_DEFINED(sig_bin.data, siglen);
 }
+
 ret = enif_make_binary(env, &sig_bin);
 sig_bin_alloc = 0;
- goto done;
-
- bad_key:
- ret = atom_error;
- goto done;
 
- notsup:
- ret = atom_notsup;
- goto done;
-
- bad_arg:
 err:
- ret = enif_make_badarg(env);
- goto done;
-
- done:
 if (sig_bin_alloc)
 enif_release_binary(&sig_bin);
 if (ctx)
@@ -582,85 +622,73 @@ ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 #else
 /* Old interface - before EVP_PKEY_CTX */
 {
- if (get_pkey_private_key(env, argv[0], argv[3], &pkey) != PKEY_OK)
- goto bad_arg;
+ if (!get_pkey_private_key(env, argv, 0, 3, &pkey, &ret))
+ goto err; /* An exception is present in ret */
 
 if (argv[0] == atom_rsa) {
 if ((rsa = EVP_PKEY_get1_RSA(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Not an RSA private key"));
 if ((len = RSA_size(rsa)) < 0)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Bad RSA private key length"));
 if (!enif_alloc_binary((size_t)len, &sig_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 sig_bin_alloc = 1;
 
 if ((len = EVP_MD_size(md)) < 0)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't get md length"));
 ERL_VALGRIND_ASSERT_MEM_DEFINED(tbs, len);
 
 if (RSA_sign(md->type, tbs, (unsigned int)len, sig_bin.data, &siglen, rsa) != 1)
- goto bad_key;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't sign"));
+ 
 } else if (argv[0] == atom_dss) {
 if ((dsa = EVP_PKEY_get1_DSA(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Not an DSA private key"));
 if ((len = DSA_size(dsa)) < 0)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Bad DSA private key length"));
 if (!enif_alloc_binary((size_t)len, &sig_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 sig_bin_alloc = 1;
 
 if ((len = EVP_MD_size(md)) < 0)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't get md length"));
 ERL_VALGRIND_ASSERT_MEM_DEFINED(tbs, len);
 
 if (DSA_sign(md->type, tbs, len, sig_bin.data, &siglen, dsa) != 1)
- goto bad_key;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't sign"));
 } else if (argv[0] == atom_ecdsa) {
 # if defined(HAVE_EC)
 if ((ec = EVP_PKEY_get1_EC_KEY(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Not an ECDSA private key"));
 if ((len = ECDSA_size(ec)) < 0)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't get size"));
 if (!enif_alloc_binary((size_t)len, &sig_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 sig_bin_alloc = 1;
 
 len = EVP_MD_size(md);
 ERL_VALGRIND_ASSERT_MEM_DEFINED(tbs, len);
 
 if (ECDSA_sign(md->type, tbs, len, sig_bin.data, &siglen, ec) != 1)
- goto bad_key;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't sign"));
 # else
- goto notsup;
+ assign_goto(ret, notsup, EXCP_NOTSUP_N(env, 0, "ecdsa not supported"));
 # endif /* HAVE_EC */
 } else {
- goto bad_arg;
+ assign_goto(ret, notsup, EXCP_BADARG_N(env, 0, "Unknown algorithm"));
 }
 
 ERL_VALGRIND_MAKE_MEM_DEFINED(sig_bin.data, siglen);
 if (siglen != sig_bin.size) {
 if (!enif_realloc_binary(&sig_bin, siglen))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't re-allocate binary"));
 ERL_VALGRIND_ASSERT_MEM_DEFINED(sig_bin.data, siglen);
 }
 ret = enif_make_binary(env, &sig_bin);
 sig_bin_alloc = 0;
- goto done;
-
- bad_key:
- ret = atom_error;
- goto done;
 
 notsup:
- ret = atom_notsup;
- goto done;
-
- bad_arg:
 err:
- ret = enif_make_badarg(env);
- goto done;
-
- done:
 if (sig_bin_alloc)
 enif_release_binary(&sig_bin);
 if (rsa)
@@ -690,7 +718,6 @@ ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 
 ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 {/* (Algorithm, Type, Data|{digest,Digest}, Signature, Key, Options) */
- int i;
 int result;
 const EVP_MD *md = NULL;
 unsigned char md_value[EVP_MAX_MD_SIZE];
@@ -715,68 +742,56 @@ ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]
 
 
 #ifndef HAS_ENGINE_SUPPORT
- if (enif_is_map(env, argv[4]))
- return atom_notsup;
+ if (enif_is_map(env, argv[3]))
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "No engine support"));
 #endif
 
- if (!enif_inspect_binary(env, argv[3], &sig_bin))
-	return enif_make_badarg(env);
-
- i = get_pkey_sign_digest(env, argv, 0, 1, 2, md_value, &md, &tbs, &tbslen, &ret);
- switch (i) {
- case PKEY_OK:
- break;
- case PKEY_NOTSUP:
- goto notsup;
- default:
- goto bad_arg;
- }
+ if (!get_pkey_sign_digest(env, argv, 0, 1, 2, md_value, &md, &tbs, &tbslen, &ret))
+ goto err; /* An exception is present in ret */
 
- i = get_pkey_sign_options(env, argv, 0, 5, md, &sig_opt, &ret);
- switch (i) {
- case PKEY_OK:
- break;
- case PKEY_NOTSUP:
- goto notsup;
- default:
- goto bad_arg;
- }
+ if (!get_pkey_sign_options(env, argv, 0, 5, md, &sig_opt, &ret))
+ goto err; /* An exception is present in ret */
+
+ if (!enif_inspect_binary(env, argv[3], &sig_bin))
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Expected a binary"));
 
 #ifdef HAS_EVP_PKEY_CTX
 /* EVP_PKEY_CTX */
 {
- if (get_pkey_public_key(env, argv[0], argv[4], &pkey) != PKEY_OK)
- goto bad_arg;
+ if (!get_pkey_public_key(env, argv, 0, 4, &pkey, &ret))
+ goto err; /* An exception is present in ret */
 
 if ((ctx = EVP_PKEY_CTX_new(pkey, NULL)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate new EVP_PKEY_CTX"));
 
 if (argv[0] != atom_eddsa) {
 if (EVP_PKEY_verify_init(ctx) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_sign_init"));
 if (md != NULL) {
 if (EVP_PKEY_CTX_set_signature_md(ctx, md) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_signature_md"));
 }
 }
 
 if (argv[0] == atom_rsa) {
 if (EVP_PKEY_CTX_set_rsa_padding(ctx, sig_opt.rsa_padding) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_rsa_padding"));
+# ifdef HAVE_RSA_PKCS1_PSS_PADDING
 if (sig_opt.rsa_padding == RSA_PKCS1_PSS_PADDING) {
 if (sig_opt.rsa_mgf1_md != NULL) {
-# ifdef HAVE_RSA_MGF1_MD
+# ifdef HAVE_RSA_MGF1_MD
 if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, sig_opt.rsa_mgf1_md) != 1)
- goto err;
-# else
- goto notsup;
-# endif
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_rsa_mgf1_md"));
+# else
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 5, "rsa_mgf1_md unavailable with this cryptolib"));
+# endif
 }
 if (sig_opt.rsa_pss_saltlen > -2) {
 if (EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, sig_opt.rsa_pss_saltlen) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 5, "Bad rsa_pss_saltlen"));
 }
 }
+# endif
 }
 
 if (argv[0] == atom_eddsa) {
@@ -784,10 +799,10 @@ ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]
 EVP_MD_CTX *mdctx = NULL;
 if (!FIPS_MODE()) {
 if ((mdctx = EVP_MD_CTX_new()) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_MD_CTX_new"));
 
 if (EVP_DigestVerifyInit(mdctx, NULL, NULL, NULL, pkey) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_DigestVerifyInit"));
 
 result = EVP_DigestVerify(mdctx, sig_bin.data, sig_bin.size, tbs, tbslen);
 if (mdctx)
@@ -795,7 +810,7 @@ ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]
 }
 else
 # endif /* HAVE_EDDSA */
- goto notsup;
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 0, "eddsa not supported"));
 } else {
 /* RSA or DSS */
 if (md != NULL) {
@@ -803,18 +818,10 @@ ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]
 }
 result = EVP_PKEY_verify(ctx, sig_bin.data, sig_bin.size, tbs, tbslen);
 }
+
 ret = (result == 1 ? atom_true : atom_false);
- goto done;
 
- bad_arg:
 err:
- ret = enif_make_badarg(env);
- goto done;
-
- notsup:
- ret = atom_notsup;
-
- done:
 if (ctx)
 EVP_PKEY_CTX_free(ctx);
 if (pkey)
@@ -826,42 +833,31 @@ ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]
 #else
 /* Old interface - before EVP_PKEY_CTX */
 {
- if (get_pkey_public_key(env, argv[0], argv[4], &pkey) != PKEY_OK)
- goto bad_arg;
+ if (!get_pkey_public_key(env, argv, 0, 4, &pkey, &ret))
+ goto err; /* An exception is present in ret */
 
- if (tbslen > INT_MAX)
- goto bad_arg;
- if (sig_bin.size > INT_MAX)
- goto bad_arg;
 if (argv[0] == atom_rsa) {
 if ((rsa = EVP_PKEY_get1_RSA(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 4, "Not an RSA public key"));
 result = RSA_verify(md->type, tbs, (unsigned int)tbslen, sig_bin.data, (unsigned int)sig_bin.size, rsa);
 } else if (argv[0] == atom_dss) {
 if ((dsa = EVP_PKEY_get1_DSA(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 4, "Not an DSA public key"));
 result = DSA_verify(0, tbs, (int)tbslen, sig_bin.data, (int)sig_bin.size, dsa);
 } else if (argv[0] == atom_ecdsa) {
 # if defined(HAVE_EC)
 if ((ec = EVP_PKEY_get1_EC_KEY(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 4, "Not an ECDSA private key"));
 result = ECDSA_verify(EVP_MD_type(md), tbs, (int)tbslen, sig_bin.data, (int)sig_bin.size, ec);
 # else
- goto notsup;
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 0, "ecdsa not supported"));
 # endif /* HAVE_EC */
 } else {
- goto bad_arg;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 0, "Unknown algorithm"));
 }
 ret = (result == 1 ? atom_true : atom_false);
- goto done;
 
- bad_arg:
 err:
- ret = enif_make_badarg(env);
- goto done;
- notsup:
- ret = atom_notsup;
- done:
 if (rsa)
 RSA_free(rsa);
 # ifdef HAVE_DSA
@@ -894,7 +890,7 @@ static int get_pkey_crypt_options(ErlNifEnv *env,
 const EVP_MD *opt_md;
 
 if (!enif_is_list(env, argv[options_arg_num]))
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Expected a list"));
 
 /* defaults */
 if (argv[algorithm_arg_num] == atom_rsa) {
@@ -914,17 +910,16 @@ static int get_pkey_crypt_options(ErlNifEnv *env,
 }
 
 if (enif_is_empty_list(env, argv[options_arg_num]))
- return PKEY_OK;
+ return 1; /* There are no options to fetch. Return OK */
 
 if (argv[algorithm_arg_num] != atom_rsa)
- goto bad_arg;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Only RSA supports Options"));
 
 tail = argv[options_arg_num];
 while (enif_get_list_cell(env, tail, &head, &tail)) {
- if (!enif_get_tuple(env, head, &tpl_arity, &tpl_terms))
- goto bad_arg;
- if (tpl_arity != 2)
- goto bad_arg;
+ if (!enif_get_tuple(env, head, &tpl_arity, &tpl_terms) ||
+ (tpl_arity != 2))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Expect only two-tuples in the list"));
 
 if (tpl_terms[0] == atom_rsa_padding
 || tpl_terms[0] == atom_rsa_pad /* Compatibility */
@@ -948,59 +943,62 @@ static int get_pkey_crypt_options(ErlNifEnv *env,
 } else if (tpl_terms[1] == atom_rsa_no_padding) {
 opt->rsa_padding = RSA_NO_PADDING;
 
- } else {
- goto bad_arg;
- }
+ } else
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Bad padding type in option rsa_padding"));
+
+ } else if (tpl_terms[0] == atom_signature_md) {
+ if (!enif_is_atom(env, tpl_terms[1]))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Atom expected as argument to option signature_md"));
+
+ if (!get_pkey_digest_type(env, argv[algorithm_arg_num],
+ options_arg_num, tpl_terms[1],
+ &opt_md, err_return))
+ goto err; /* An exception is present in ret */
 
- } else if (tpl_terms[0] == atom_signature_md && enif_is_atom(env, tpl_terms[1])) {
- int i;
- i = get_pkey_digest_type(env, argv[algorithm_arg_num], tpl_terms[1], &opt_md, err_return);
- if (i != PKEY_OK) {
- return i;
- }
 opt->signature_md = opt_md;
 
- } else if (tpl_terms[0] == atom_rsa_mgf1_md && enif_is_atom(env, tpl_terms[1])) {
- int i;
+ } else if (tpl_terms[0] == atom_rsa_mgf1_md) {
+ if (!enif_is_atom(env, tpl_terms[1]))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Atom expected as argument to option rsa_mgf1_md"));
 #ifndef HAVE_RSA_MGF1_MD
 if (tpl_terms[1] != atom_sha)
- return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Only 'sha' is supported in option rsa_mgf1_md"));
 #endif
- i = get_pkey_digest_type(env, argv[algorithm_arg_num], tpl_terms[1], &opt_md, err_return);
- if (i != PKEY_OK) {
- return i;
- }
+ if (!get_pkey_digest_type(env, argv[algorithm_arg_num],
+ options_arg_num, tpl_terms[1],
+ &opt_md, err_return))
+ goto err; /* An exception is present in ret */
 opt->rsa_mgf1_md = opt_md;
 
- } else if (tpl_terms[0] == atom_rsa_oaep_label
- && enif_inspect_binary(env, tpl_terms[1], &(opt->rsa_oaep_label))) {
+ } else if (tpl_terms[0] == atom_rsa_oaep_label) {
 #ifdef HAVE_RSA_OAEP_MD
+ if (!enif_inspect_binary(env, tpl_terms[1], &(opt->rsa_oaep_label)))
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Binary expected for option rsa_oaep_label"));
 continue;
 #else
- return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, options_arg_num, "Option rsa_oaep_label is not supported"));
 #endif
 
- } else if (tpl_terms[0] == atom_rsa_oaep_md && enif_is_atom(env, tpl_terms[1])) {
- int i;
+ } else if (tpl_terms[0] == atom_rsa_oaep_md) {
+ if (!enif_is_atom(env, tpl_terms[1]))
+ assign_goto(*err_return, err, EXCP_NOTSUP_N(env, options_arg_num, "Atom expected as argument to option rsa_oaep_md"));
 #ifndef HAVE_RSA_OAEP_MD
 if (tpl_terms[1] != atom_sha)
- return PKEY_NOTSUP;
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Only 'sha' is supported in option rsa_oaep_md"));
 #endif
- i = get_pkey_digest_type(env, argv[algorithm_arg_num], tpl_terms[1], &opt_md, err_return);
- if (i != PKEY_OK) {
- return i;
- }
+ if (!get_pkey_digest_type(env, argv[algorithm_arg_num],
+ options_arg_num, tpl_terms[1],
+ &opt_md, err_return))
+ goto err; /* An exception is present in ret */
 opt->rsa_oaep_md = opt_md;
-
- } else {
- goto bad_arg;
- }
+ } else
+ assign_goto(*err_return, err, EXCP_BADARG_N(env, options_arg_num, "Unknown option"))
 }
 
- return PKEY_OK;
+ return 1;
 
- bad_arg:
- return PKEY_BADARG;
+ err:
+ return 0;
 }
 
 #ifdef HAVE_RSA_SSLV23_PADDING
@@ -1023,7 +1021,6 @@ static size_t size_of_RSA(EVP_PKEY *pkey) {
 ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 {/* (Algorithm, Data, PublKey=[E,N]|[E,N,D]|[E,N,D,P1,P2,E1,E2,C], Options, IsPrivate, IsEncrypt) */
 ERL_NIF_TERM ret = atom_undefined;
- int i;
 int result = 0;
 int tmp_bin_alloc = 0;
 int out_bin_alloc = 0;
@@ -1041,74 +1038,61 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 size_t tmplen;
 #endif
 int is_private, is_encrypt;
- int algo_init = 0;
 unsigned char *label_copy = NULL;
 
- ASSERT(argc == 6);
-
 is_private = (argv[4] == atom_true);
 is_encrypt = (argv[5] == atom_true);
 
-/* char algo[1024]; */
+ if (!check_pkey_algorithm_type(env, 0, argv[0], &ret))
+ goto err; /* An exception is present in ret */
+
+ if (!enif_inspect_binary(env, argv[1], &in_bin))
+ assign_goto(ret, err, EXCP_BADARG_N(env, 1, "Binary expected"));
 
 #ifndef HAS_ENGINE_SUPPORT
 if (enif_is_map(env, argv[2]))
- return atom_notsup;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 2, "No engine support"));
 #endif
 
- if (!enif_inspect_binary(env, argv[1], &in_bin))
- goto bad_arg;
-
- i = get_pkey_crypt_options(env, argv, 0, 3, &crypt_opt, &ret);
- switch (i) {
- case PKEY_OK:
- break;
- case PKEY_NOTSUP:
- goto notsup;
- default:
- goto bad_arg;
- }
-
 if (is_private) {
- if (get_pkey_private_key(env, argv[0], argv[2], &pkey) != PKEY_OK)
- goto bad_arg;
+ if (!get_pkey_private_key(env, argv, 0, 2, &pkey, &ret))
+ goto err; /* An exception is present in ret */
 } else {
- if (get_pkey_public_key(env, argv[0], argv[2], &pkey) != PKEY_OK)
- goto bad_arg;
+ if (!get_pkey_public_key(env, argv, 0, 2, &pkey, &ret))
+ goto err; /* An exception is present in ret */
 }
 
+ if (!get_pkey_crypt_options(env, argv, 0, 3, &crypt_opt, &ret))
+ goto err; /* An exception is present in ret */
+
 #ifdef HAS_EVP_PKEY_CTX
- if ((ctx = EVP_PKEY_CTX_new(pkey, NULL)) == NULL)
- goto err;
+ {
+ int algo_init = 0;
 
-/* enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1); */
+ if ((ctx = EVP_PKEY_CTX_new(pkey, NULL)) == NULL)
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate new EVP_PKEY_CTX"));
 
- if (is_private) {
- if (is_encrypt) {
- /* private encrypt */
- if ((algo_init = EVP_PKEY_sign_init(ctx)) != 1)
- goto bad_arg;
- } else {
- /* private decrypt */
- if ((algo_init = EVP_PKEY_decrypt_init(ctx)) != 1)
- goto bad_arg;
- }
- } else {
- if (is_encrypt) {
- /* public encrypt */
- if ((algo_init = EVP_PKEY_encrypt_init(ctx)) != 1)
- goto bad_arg;
- } else {
- /* public decrypt */
- if ((algo_init = EVP_PKEY_verify_recover_init(ctx)) != 1)
- goto bad_arg;
- }
+ if (is_private) {
+ if (is_encrypt)
+ algo_init = EVP_PKEY_sign_init(ctx);
+ else
+ algo_init = EVP_PKEY_decrypt_init(ctx);
+
+ } else {
+ if (is_encrypt)
+ algo_init = EVP_PKEY_encrypt_init(ctx);
+ else
+ algo_init = EVP_PKEY_verify_recover_init(ctx);
+ }
+
+ if (algo_init != 1)
+ assign_goto(ret, err, EXCP_NOTSUP(env, "Can't initiate encrypt/decrypt"));
 }
 
 if (argv[0] == atom_rsa) {
 if (crypt_opt.signature_md != NULL) {
 if (EVP_PKEY_CTX_set_signature_md(ctx, crypt_opt.signature_md) != 1)
- goto bad_arg;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't EVP_PKEY_CTX_set_signature_md"));
 }
 
 # ifdef HAVE_RSA_SSLV23_PADDING
@@ -1116,40 +1100,38 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 if (is_encrypt) {
 tmplen = size_of_RSA(pkey);
 if (tmplen < 1 || tmplen > INT_MAX)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 2, "RSA key of wrong size"));
 if (!enif_alloc_binary(tmplen, &tmp_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 tmp_bin_alloc = 1;
 if (in_bin.size > INT_MAX)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 1, "Binary too large"));
 if (!RSA_padding_add_SSLv23(tmp_bin.data, (int)tmplen, in_bin.data, (int)in_bin.size))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't RSA_padding_add_SSLv23"));
 in_bin = tmp_bin;
 }
 if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_NO_PADDING) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't set RSA_NO_PADDING"));
 } else
 # endif
- {
 if (EVP_PKEY_CTX_set_rsa_padding(ctx, crypt_opt.rsa_padding) != 1)
- goto err;
- }
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't set rsa padding"));
 
 # ifdef HAVE_RSA_OAEP_MD
 if (crypt_opt.rsa_padding == RSA_PKCS1_OAEP_PADDING) {
 if (crypt_opt.rsa_oaep_md != NULL) {
 if (EVP_PKEY_CTX_set_rsa_oaep_md(ctx, crypt_opt.rsa_oaep_md) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't EVP_PKEY_CTX_set_rsa_oaep_md"));
 }
 
 if (crypt_opt.rsa_mgf1_md != NULL) {
 if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, crypt_opt.rsa_mgf1_md) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't EVP_PKEY_CTX_set_rsa_mgf1_md"));
 }
 
 if (crypt_opt.rsa_oaep_label.data != NULL && crypt_opt.rsa_oaep_label.size > 0) {
 if (crypt_opt.rsa_oaep_label.size > INT_MAX)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "RSA oep label too large"));
 if ((label_copy = OPENSSL_malloc(crypt_opt.rsa_oaep_label.size)) == NULL)
 goto err;
 
@@ -1158,7 +1140,7 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 
 if (EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, label_copy,
 (int)crypt_opt.rsa_oaep_label.size) != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't set RSA oaep label"));
 /* On success, label_copy is owned by ctx */
 label_copy = NULL;
 }
@@ -1166,105 +1148,77 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 # endif
 }
 
- if (is_private) {
- if (is_encrypt) {
- /* private_encrypt */
- result = EVP_PKEY_sign(ctx, NULL, &outlen, in_bin.data, in_bin.size);
- } else {
- /* private_decrypt */
- result = EVP_PKEY_decrypt(ctx, NULL, &outlen, in_bin.data, in_bin.size);
- }
- } else {
- if (is_encrypt) {
- /* public_encrypt */
- result = EVP_PKEY_encrypt(ctx, NULL, &outlen, in_bin.data, in_bin.size);
- } else {
- /* public_decrypt */
- result = EVP_PKEY_verify_recover(ctx, NULL, &outlen, in_bin.data, in_bin.size);
- }
- }
-
+ /* Get the size of the result */
+ if (is_private)
+ result =
+ is_encrypt ? EVP_PKEY_sign(ctx, NULL, &outlen, in_bin.data, in_bin.size)
+ : EVP_PKEY_decrypt(ctx, NULL, &outlen, in_bin.data, in_bin.size);
+ else
+ result =
+ is_encrypt ? EVP_PKEY_encrypt(ctx, NULL, &outlen, in_bin.data, in_bin.size)
+ : EVP_PKEY_verify_recover(ctx, NULL, &outlen, in_bin.data, in_bin.size);
+ 
+ /* Check */
 if (result != 1)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't get size of result"));
 
+ /* Allocate */
 if (!enif_alloc_binary(outlen, &out_bin))
- goto err;
- out_bin_alloc = 1;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 
- if (is_private) {
- if (is_encrypt) {
- /* private_encrypt */
- result = EVP_PKEY_sign(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
- } else {
- /* private_decrypt */
- result = EVP_PKEY_decrypt(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
- }
- } else {
- if (is_encrypt) {
- /* public_encrypt */
- result = EVP_PKEY_encrypt(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
- } else {
- /* public_decrypt */
- result = EVP_PKEY_verify_recover(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
- }
- }
+ out_bin_alloc = 1; /* Flag de-allocation */
+
+ /* Get the result into the newly allocated binary */
+ if (is_private)
+ result =
+ is_encrypt ? EVP_PKEY_sign(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size)
+ : EVP_PKEY_decrypt(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
+ else
+ result=
+ is_encrypt ? EVP_PKEY_encrypt(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size)
+ : EVP_PKEY_verify_recover(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
+
+ if (result != 1)
+ assign_goto(ret, err, EXCP_ERROR(env, "Couldn't get the result"));
 
 #else
- /* Non-EVP cryptolib. Only support RSA */
+ /* Non-EVP cryptolib. Only supports RSA */
 
- if (argv[0] != atom_rsa) {
- algo_init = -2; /* exitcode: notsup */
- goto bad_arg;
- }
+ if (argv[0] != atom_rsa)
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 0, "Only RSA is supported"));
 
 if ((rsa = EVP_PKEY_get1_RSA(pkey)) == NULL)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 2, "Not RSA key"));
 if ((len = RSA_size(rsa)) < 0)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 3, "Bad RSA key length"));
 if (!enif_alloc_binary((size_t)len, &out_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 out_bin_alloc = 1;
 
 if (in_bin.size > INT_MAX)
- goto err;
- if (is_private) {
- if (is_encrypt) {
- /* non-evp rsa private encrypt */
- ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size);
- result = RSA_private_encrypt((int)in_bin.size, in_bin.data,
- out_bin.data, rsa, crypt_opt.rsa_padding);
- if (result > 0) {
- ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, result);
- }
- } else {
- /* non-evp rsa private decrypt */
- result = RSA_private_decrypt((int)in_bin.size, in_bin.data,
- out_bin.data, rsa, crypt_opt.rsa_padding);
- if (result > 0) {
- ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, result);
- if (!enif_realloc_binary(&out_bin, (size_t)result))
- goto err;
- }
- }
- } else {
- if (is_encrypt) {
- /* non-evp rsa public encrypt */
- ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size);
- result = RSA_public_encrypt((int)in_bin.size, in_bin.data,
- out_bin.data, rsa, crypt_opt.rsa_padding);
- if (result > 0) {
- ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, result);
- }
- } else {
- /* non-evp rsa public decrypt */
- result = RSA_public_decrypt((int)in_bin.size, in_bin.data,
- out_bin.data, rsa, crypt_opt.rsa_padding);
- if (result > 0) {
- ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, result);
- if (!enif_realloc_binary(&out_bin, (size_t)result))
- goto err;
- }
- }
+ assign_goto(ret, err, EXCP_BADARG_N(env, 1, "Bad indata length"));
+ 
+ if (is_encrypt) {
+ ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size);
+ }
+
+ if (is_private)
+ result =
+ is_encrypt ? RSA_private_encrypt((int)in_bin.size, in_bin.data,
+ out_bin.data, rsa, crypt_opt.rsa_padding)
+ : RSA_private_decrypt((int)in_bin.size, in_bin.data,
+ out_bin.data, rsa, crypt_opt.rsa_padding);
+ else
+ result =
+ is_encrypt ? RSA_public_encrypt((int)in_bin.size, in_bin.data,
+ out_bin.data, rsa, crypt_opt.rsa_padding)
+ : RSA_public_decrypt((int)in_bin.size, in_bin.data,
+ out_bin.data, rsa, crypt_opt.rsa_padding);
+ if (result > 0) {
+ ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, result);
+ if (!is_encrypt &&
+ !enif_realloc_binary(&out_bin, (size_t)result))
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't re-allocate binary"));
 }
 
 outlen = (size_t)result;
@@ -1277,12 +1231,12 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 
 tmplen = size_of_RSA(pkey);
 if (tmplen < 1 || tmplen > INT_MAX)
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 2, "RSA key of wrong size"));
 if (!enif_alloc_binary(tmplen, &tmp_bin))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't allocate binary"));
 tmp_bin_alloc = 1;
 if (out_bin.size > INT_MAX)
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Result too large"));
 
 p = out_bin.data;
 p++;
@@ -1303,28 +1257,16 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, outlen);
 if (outlen != out_bin.size) {
 if (!enif_realloc_binary(&out_bin, outlen))
- goto err;
+ assign_goto(ret, err, EXCP_ERROR(env, "Can't re-allocate binary"));
 ERL_VALGRIND_ASSERT_MEM_DEFINED(out_bin.data, outlen);
 }
 ret = enif_make_binary(env, &out_bin);
 out_bin_alloc = 0;
 } else {
- ret = atom_error;
+ assign_goto(ret, err, EXCP_ERROR(env, "RSA encrypt/decrypt failed"));
 }
- goto done;
 
- notsup:
- ret = atom_notsup;
- goto done;
-
- bad_arg:
 err:
- if (algo_init == -2)
- ret = atom_notsup;
- else
- ret = enif_make_badarg(env);
-
- done:
 if (out_bin_alloc)
 enif_release_binary(&out_bin);
 if (tmp_bin_alloc)
@@ -1344,7 +1286,7 @@ ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 OPENSSL_free(label_copy);
 
 return ret;
-}
+ }
 
 ERL_NIF_TERM privkey_to_pubkey_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 { /* (Algorithm, PrivKey | KeyMap) */
@@ -1353,17 +1295,20 @@ ERL_NIF_TERM privkey_to_pubkey_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
 
 ASSERT(argc == 2);
 
- if (get_pkey_private_key(env, argv[0], argv[1], &pkey) != PKEY_OK) // handles engine
- goto bad_arg;
+ if (!check_pkey_algorithm_type(env, 0, argv[0], &ret))
+ goto err; /* An exception is present in ret */
+ 
+ if (!get_pkey_private_key(env, argv, 0, 1, &pkey, &ret)) // handles engine
+ goto err; /* An exception is present in ret */
 
 if (argv[0] == atom_rsa) {
 if (!rsa_privkey_to_pubkey(env, pkey, &ret))
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 1, "Couldn't get RSA public key from private key"));
 
 #ifdef HAVE_DSA
 } else if (argv[0] == atom_dss) {
 if (!dss_privkey_to_pubkey(env, pkey, &ret))
- goto err;
+ assign_goto(ret, err, EXCP_BADARG_N(env, 1, "Couldn't get DSA public key from private key"));
 #endif
 } else if (argv[0] == atom_ecdsa) {
 #if defined(HAVE_EC)
@@ -1400,18 +1345,12 @@ ERL_NIF_TERM privkey_to_pubkey_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
 return enif_make_list_from_array(env, ..., ...);
 */
 #endif
- goto bad_arg;
+ assign_goto(ret, err, EXCP_NOTSUP_N(env, 0, "ECDSA not implemented"));
 } else {
- goto bad_arg;
+ ret = EXCP_BADARG_N(env, 0, "Bad algorithm");
 }
 
- goto done;
-
- bad_arg:
 err:
- ret = enif_make_badarg(env);
-
- done:
 if (pkey)
 EVP_PKEY_free(pkey);
 
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml
index 9ee2653c0c..d1876d6063 100644
--- a/lib/crypto/doc/src/crypto.xml
+++ b/lib/crypto/doc/src/crypto.xml
@@ -1253,6 +1253,7 @@ end
 <name name="private_decrypt" arity="4" since="OTP R16B01"/>
 <fsummary>Decrypts CipherText using the private Key.</fsummary>
 <desc>
+	Uses the <seeerl marker="#error_3tup">3-tuple style</seeerl> for error handling.
 	Decrypts the <c>CipherText</c>, encrypted with
 	<seemfa marker="#public_encrypt/4">public_encrypt/4</seemfa> (or equivalent function)
 	 using the <c>PrivateKey</c>, and returns the
@@ -1267,6 +1268,7 @@ end
 <name name="private_encrypt" arity="4" since="OTP R16B01"/>
 <fsummary>Encrypts PlainText using the private Key.</fsummary>
 <desc>
+	Uses the <seeerl marker="#error_3tup">3-tuple style</seeerl> for error handling.
 	Encrypts the <c>PlainText</c> using the <c>PrivateKey</c>
 	and returns the ciphertext. This is a low level signature operation
 	used for instance by older versions of the SSL protocol. See
@@ -1280,6 +1282,7 @@ end
 <name name="public_decrypt" arity="4" since="OTP R16B01"/>
 <fsummary>Decrypts CipherText using the public Key.</fsummary>
 <desc>
+	Uses the <seeerl marker="#error_3tup">3-tuple style</seeerl> for error handling.
 	Decrypts the <c>CipherText</c>, encrypted with
 	<seemfa marker="#private_encrypt/4">private_encrypt/4</seemfa>(or equivalent function)
 	 using the <c>PrivateKey</c>, and returns the
@@ -1294,6 +1297,7 @@ end
 <name name="public_encrypt" arity="4" since="OTP R16B01"/>
 <fsummary>Encrypts PlainText using the public Key.</fsummary>
 <desc>
+	Uses the <seeerl marker="#error_3tup">3-tuple style</seeerl> for error handling.
 	Encrypts the <c>PlainText</c> (message digest) using the <c>PublicKey</c>
 	and returns the <c>CipherText</c>. This is a low level signature operation
 	used for instance by older versions of the SSL protocol. See also <seemfa
@@ -1630,6 +1634,7 @@ FloatValue = rand:uniform(). % again
 <name name="sign" arity="5" since="OTP 20.1"/>
 <fsummary> Create digital signature.</fsummary>
 <desc>
+	Uses the <seeerl marker="#error_3tup">3-tuple style</seeerl> for error handling.
 	Creates a digital signature.
 	The msg is either the binary "cleartext" data to be
 	signed or it is the hashed value of "cleartext" i.e. the
@@ -1645,6 +1650,7 @@ FloatValue = rand:uniform(). % again
 <name name="verify" arity="6" since="OTP 20.1"/>
 <fsummary>Verifies a digital signature.</fsummary>
 <desc>
+	Uses the <seeerl marker="#error_3tup">3-tuple style</seeerl> for error handling.
 	Verifies a digital signature
 	The msg is either the binary "cleartext" data to be
 	signed or it is the hashed value of "cleartext" i.e. the
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index bffaacb043..fdf2cdfbf9 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -1424,11 +1424,9 @@ sign(Algorithm, Type, Data, Key) ->
 
 sign(Algorithm0, Type0, Data, Key, Options) ->
 {Algorithm, Type} = sign_verify_compatibility(Algorithm0, Type0, Data),
- case pkey_sign_nif(Algorithm, Type, Data, format_pkey(Algorithm, Key), Options) of
-	error -> erlang:error(badkey, [Algorithm, Type, Data, Key, Options]);
-	notsup -> erlang:error(notsup);
-	Signature -> Signature
- end.
+ ?nif_call(pkey_sign_nif(Algorithm, Type, Data, format_pkey(Algorithm, Key), Options),
+ {1, 2, 3, 4, 5},
+ [Algorithm0, Type0, Data, Key, Options]).
 
 pkey_sign_nif(_Algorithm, _Type, _Digest, _Key, _Options) -> ?nif_stub.
 
@@ -1473,10 +1471,9 @@ verify(Algorithm, Type, Data, Signature, Key) ->
 
 verify(Algorithm0, Type0, Data, Signature, Key, Options) ->
 {Algorithm, Type} = sign_verify_compatibility(Algorithm0, Type0, Data),
- case pkey_verify_nif(Algorithm, Type, Data, Signature, format_pkey(Algorithm, Key), Options) of
-	notsup -> erlang:error(notsup);
-	Boolean -> Boolean
- end.
+ ?nif_call(pkey_verify_nif(Algorithm, Type, Data, Signature, format_pkey(Algorithm, Key), Options),
+ {1,2,3,4,5},
+ [Algorithm0, Type0, Data, Signature, Key, Options]).
 
 pkey_verify_nif(_Algorithm, _Type, _Data, _Signature, _Key, _Options) -> ?nif_stub.
 
@@ -1562,12 +1559,7 @@ pkey_crypt(rsa, Text, Key, Padding, PubPriv, EncDec) when is_atom(Padding) ->
 pkey_crypt(rsa, Text, Key, [{rsa_padding, Padding}], PubPriv, EncDec);
 
 pkey_crypt(Alg, Text, Key, Options, PubPriv, EncDec) ->
- case pkey_crypt_nif(Alg, Text, format_pkey(Alg,Key), Options, PubPriv, EncDec) of
-	error when EncDec==true -> erlang:error(encrypt_failed, [Alg, Text, Key, Options]);
-	error when EncDec==false -> erlang:error(decrypt_failed, [Alg, Text, Key, Options]);
-	notsup -> erlang:error(notsup);
-	Out -> Out
- end.
+ ?nif_call(pkey_crypt_nif(Alg, Text, format_pkey(Alg,Key), Options, PubPriv, EncDec)).
 
 pkey_crypt_nif(_Algorithm, _In, _Key, _Options, _IsPrivate, _IsEncrypt) -> ?nif_stub.
 
@@ -2305,16 +2297,15 @@ ec_curve(X) ->
 EnginePrivateKeyRef :: engine_key_ref(),
 PublicKey :: rsa_public() | dss_public() .
 privkey_to_pubkey(Alg, EngineMap) when Alg == rsa; Alg == dss; Alg == ecdsa ->
- try privkey_to_pubkey_nif(Alg, format_pkey(Alg,EngineMap))
- of
+ try ?nif_call(privkey_to_pubkey_nif(Alg, format_pkey(Alg,EngineMap))) of
 [_|_]=L -> map_ensure_bin_as_int(L);
 X -> X
 catch
- error:badarg when Alg==ecdsa ->
+ error:{badarg,_,_} when Alg==ecdsa ->
 {error, notsup};
- error:badarg ->
+ error:{badarg,_,_} ->
 {error, not_found};
- error:notsup ->
+ error:{notsup,_,_} ->
 {error, notsup}
 end.
 
diff --git a/lib/crypto/test/crypto_SUITE.erl b/lib/crypto/test/crypto_SUITE.erl
index 0329ed992a..15ab9e735a 100644
--- a/lib/crypto/test/crypto_SUITE.erl
+++ b/lib/crypto/test/crypto_SUITE.erl
@@ -1584,6 +1584,13 @@ do_sign_verify({Type, Hash, Public, Private, Msg, Options}) ->
 ct:log("notsup but OK in old cryptolib crypto:sign(~p, ~p, ..., ..., ..., ~p)",
 [Type,Hash,Options]),
 true;
+ error:{notsup,_,_} when NotSupLow == true,
+ is_integer(LibVer),
+ LibVer < 16#10001000 ->
+ %% Those opts where introduced in 1.0.1
+ ct:log("notsup but OK in old cryptolib crypto:sign(~p, ~p, ..., ..., ..., ~p)",
+ [Type,Hash,Options]),
+ true;
 C:E ->
 ct:log("~p:~p crypto:sign(~p, ~p, ..., ..., ..., ~p)", [C,E,Type,Hash,Options]),
 ct:fail({{crypto, sign_verify, [LibVer, Type, Hash, Msg, Public, Options]}})
@@ -4353,15 +4360,15 @@ bad_mac_name(_Config) ->
 
 bad_sign_name(_Config) ->
 ?chk_api_name(crypto:sign(rsa, foobar, "nothing", <<1:1024>>),
- error:badarg),
+ error:{badarg, {"pkey.c",_}, "Bad digest type"}),
 ?chk_api_name(crypto:sign(foobar, sha, "nothing", <<1:1024>>),
- error:badarg).
+ error:{badarg, {"pkey.c",_}, "Bad algorithm"}).
 
 bad_verify_name(_Config) ->
- ?chk_api_name(crypto:verify(rsa, foobar, "nothing","nothing", <<1:1024>>),
- error:badarg),
- ?chk_api_name(crypto:verify(foobar, sha, "nothing", "nothing", <<1:1024>>),
- error:badarg).
+ ?chk_api_name(crypto:verify(rsa, foobar, "nothing", <<"nothing">>, <<1:1024>>),
+ error:{badarg,{"pkey.c",_},"Bad digest type"}),
+ ?chk_api_name(crypto:verify(foobar, sha, "nothing", <<"nothing">>, <<1:1024>>),
+ error:{badarg, {"pkey.c",_}, "Bad algorithm"}).
 
 
 %%%----------------------------------------------------------------
diff --git a/lib/crypto/test/engine_SUITE.erl b/lib/crypto/test/engine_SUITE.erl
index cab519fdb9..91ed00cbab 100644
--- a/lib/crypto/test/engine_SUITE.erl
+++ b/lib/crypto/test/engine_SUITE.erl
@@ -833,7 +833,7 @@ sign_verify_rsa_pwd_bad_pwd(Config) ->
 try sign_verify(rsa, sha, Priv, Pub) of
 _ -> {fail, "PWD prot pubkey sign succeeded with no pwd!"}
 catch
- error:badarg -> ok
+ error:{badarg,_,_} -> ok
 end.
 
 priv_encrypt_pub_decrypt_rsa(Config) ->
-- 
2.34.1

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File 2556-crypto-pkey.c-error-ERR-error-ERR-FileInfo-Descripti.patch of Package erlang (Revision 141dc5cf1cf76598898fdde76784937f)

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