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home:dirkmueller:acdc:as_python3_module
openssl-1_0_0.29468
openssl-add_rfc3526_rfc7919.patch
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File openssl-add_rfc3526_rfc7919.patch of Package openssl-1_0_0.29468
diff --git a/crypto/dh/dh.h b/crypto/dh/dh.h index 2ff8f56..8e82976 100644 --- a/crypto/dh/dh.h +++ b/crypto/dh/dh.h @@ -261,6 +261,21 @@ DH *DH_get_1024_160(void); DH *DH_get_2048_224(void); DH *DH_get_2048_256(void); +/* RFC 3526 parameters */ +DH *DH_rfc3526_get_1536(void); +DH *DH_rfc3526_get_2048(void); +DH *DH_rfc3526_get_3072(void); +DH *DH_rfc3526_get_4096(void); +DH *DH_rfc3526_get_6144(void); +DH *DH_rfc3526_get_8192(void); + +/* RFC 7919 parameters */ +DH *DH_rfc7919_get_2048(void); +DH *DH_rfc7919_get_3072(void); +DH *DH_rfc7919_get_4096(void); +DH *DH_rfc7919_get_6144(void); +DH *DH_rfc7919_get_8192(void); + # ifndef OPENSSL_NO_CMS /* RFC2631 KDF */ int DH_KDF_X9_42(unsigned char *out, size_t outlen, @@ -293,6 +308,11 @@ int DH_KDF_X9_42(unsigned char *out, size_t outlen, EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \ EVP_PKEY_CTRL_DH_RFC5114, gen, NULL) +# define EVP_PKEY_CTX_set_dh_nid(ctx, nid) \ + EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, \ + EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN, \ + EVP_PKEY_CTRL_DH_NID, nid, NULL) + # define EVP_PKEY_CTX_set_dh_kdf_type(ctx, kdf) \ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ EVP_PKEY_OP_DERIVE, \ @@ -357,6 +377,7 @@ int DH_KDF_X9_42(unsigned char *out, size_t outlen, # define EVP_PKEY_CTRL_GET_DH_KDF_UKM (EVP_PKEY_ALG_CTRL + 12) # define EVP_PKEY_CTRL_DH_KDF_OID (EVP_PKEY_ALG_CTRL + 13) # define EVP_PKEY_CTRL_GET_DH_KDF_OID (EVP_PKEY_ALG_CTRL + 14) +# define EVP_PKEY_CTRL_DH_NID (EVP_PKEY_ALG_CTRL + 15) /* KDF types */ # define EVP_PKEY_DH_KDF_NONE 1 diff --git a/crypto/dh/dh_pmeth.c b/crypto/dh/dh_pmeth.c index 162753a..2290c3b 100644 --- a/crypto/dh/dh_pmeth.c +++ b/crypto/dh/dh_pmeth.c @@ -80,6 +80,7 @@ typedef struct { /* message digest used for parameter generation */ const EVP_MD *md; int rfc5114_param; + int param_nid; /* Keygen callback info */ int gentmp[2]; /* KDF (if any) to use for DH */ @@ -107,6 +108,7 @@ static int pkey_dh_init(EVP_PKEY_CTX *ctx) dctx->use_dsa = 0; dctx->md = NULL; dctx->rfc5114_param = 0; + dctx->param_nid = NID_undef; dctx->kdf_type = EVP_PKEY_DH_KDF_NONE; dctx->kdf_oid = NULL; @@ -135,6 +137,7 @@ static int pkey_dh_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) dctx->use_dsa = sctx->use_dsa; dctx->md = sctx->md; dctx->rfc5114_param = sctx->rfc5114_param; + dctx->param_nid = sctx->param_nid; dctx->kdf_type = sctx->kdf_type; dctx->kdf_oid = OBJ_dup(sctx->kdf_oid); @@ -195,11 +198,17 @@ static int pkey_dh_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) return 1; case EVP_PKEY_CTRL_DH_RFC5114: - if (p1 < 1 || p1 > 3) + if (p1 < 1 || p1 > 3 || dctx->param_nid != NID_undef) return -2; dctx->rfc5114_param = p1; return 1; + case EVP_PKEY_CTRL_DH_NID: + if (p1 <= 0 || dctx->rfc5114_param != 0) + return -2; + dctx->param_nid = p1; + return 1; + case EVP_PKEY_CTRL_PEER_KEY: /* Default behaviour is OK */ return 1; @@ -281,6 +290,16 @@ static int pkey_dh_ctrl_str(EVP_PKEY_CTX *ctx, dctx->rfc5114_param = len; return 1; } + if (strcmp(type, "dh_param") == 0) { + DH_PKEY_CTX *dctx = ctx->data; + int nid = OBJ_sn2nid(value); + + if (nid == NID_undef) { + return -2; + } + dctx->param_nid = nid; + return 1; + } if (!strcmp(type, "dh_paramgen_generator")) { int len; len = atoi(value); @@ -380,6 +399,53 @@ static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) return 1; } + /* + * Look for a safe prime group for key establishment. Which uses + * either RFC_3526 (modp_XXXX) or RFC_7919 (ffdheXXXX). + */ + if (dctx->param_nid != 0) { + switch (dctx->param_nid) { + case NID_ffdhe2048: + dh = DH_rfc7919_get_2048(); + break; + case NID_ffdhe3072: + dh = DH_rfc7919_get_3072(); + break; + case NID_ffdhe4096: + dh = DH_rfc7919_get_4096(); + break; + case NID_ffdhe6144: + dh = DH_rfc7919_get_6144(); + break; + case NID_ffdhe8192: + dh = DH_rfc7919_get_8192(); + break; + case NID_modp_2048: + dh = DH_rfc3526_get_2048(); + break; + case NID_modp_3072: + dh = DH_rfc3526_get_3072(); + break; + case NID_modp_4096: + dh = DH_rfc3526_get_4096(); + break; + case NID_modp_6144: + dh = DH_rfc3526_get_6144(); + break; + case NID_modp_8192: + dh = DH_rfc3526_get_8192(); + break; + case NID_modp_1536: + dh = DH_rfc3526_get_1536(); + break; + default: + return NULL; + } + EVP_PKEY_assign(pkey, EVP_PKEY_DH, dh); + return 1; + } + + if (ctx->pkey_gencb) { pcb = &cb; evp_pkey_set_cb_translate(pcb, ctx); @@ -415,16 +481,22 @@ static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) static int pkey_dh_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) { DH *dh = NULL; - if (ctx->pkey == NULL) { + DH_PKEY_CTX *dctx = ctx->data; + + if (ctx->pkey == NULL && dctx->param_nid == 0) { DHerr(DH_F_PKEY_DH_KEYGEN, DH_R_NO_PARAMETERS_SET); return 0; } - dh = DH_new(); + if (dctx->param_nid != 0) + dh = DH_new_by_nid(dctx->param_nid); + else + dh = DH_new(); + if (!dh) return 0; EVP_PKEY_assign(pkey, ctx->pmeth->pkey_id, dh); /* Note: if error return, pkey is freed by parent routine */ - if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey)) + if (ctx->pkey != NULL && !EVP_PKEY_copy_parameters(pkey, ctx->pkey)) return 0; return DH_generate_key(pkey->pkey.dh); } diff --git a/crypto/dh/dh_rfc5114.c b/crypto/dh/dh_rfc5114.c index 3f05bb0..eb2fbf2 100644 --- a/crypto/dh/dh_rfc5114.c +++ b/crypto/dh/dh_rfc5114.c @@ -1098,6 +1098,64 @@ const BIGNUM _bignum_const_2 = { (BN_ULONG *)&value_2, 1, 1, 0, BN_FLG_STATIC_DATA }; +/* Similar macro to make a DH structure for rfc3526 */ + +#define make_rfc3526_dh(x) \ +DH * DH_rfc3526_get_##x(void) \ + { \ + DH *dh; \ + make_dh_bn(modp_##x##_p); \ + make_dh_bn(modp_##x##_q); \ + dh = DH_new(); \ + if (!dh) \ + return NULL; \ + dh->p = BN_dup(&_bignum_modp_##x##_p); \ + dh->q = BN_dup(&_bignum_modp_##x##_q); \ + dh->g = BN_dup(&_bignum_const_2); \ + if (!dh->p || !dh->q || !dh->g) \ + { \ + DH_free(dh); \ + return NULL; \ + } \ + return dh; \ + } + +make_rfc3526_dh(1536) +make_rfc3526_dh(2048) +make_rfc3526_dh(3072) +make_rfc3526_dh(4096) +make_rfc3526_dh(6144) +make_rfc3526_dh(8192) + + +/* Similar macro to make a DH structure for rfc7919 */ + +#define make_rfc7919_dh(x) \ +DH * DH_rfc7919_get_##x(void) \ + { \ + DH *dh; \ + make_dh_bn(ffdhe##x##_p); \ + make_dh_bn(ffdhe##x##_q); \ + dh = DH_new(); \ + if (!dh) \ + return NULL; \ + dh->p = BN_dup(&_bignum_ffdhe##x##_p); \ + dh->q = BN_dup(&_bignum_ffdhe##x##_q); \ + dh->g = BN_dup(&_bignum_const_2); \ + if (!dh->p || !dh->q || !dh->g) \ + { \ + DH_free(dh); \ + return NULL; \ + } \ + return dh; \ + } + +make_rfc7919_dh(2048) +make_rfc7919_dh(3072) +make_rfc7919_dh(4096) +make_rfc7919_dh(6144) +make_rfc7919_dh(8192) + make_dh_bn(dh1024_160_p) make_dh_bn(dh1024_160_q) make_dh_bn(dh1024_160_g) diff --git a/doc/apps/genpkey.pod b/doc/apps/genpkey.pod index 2e24400..4da1dd2 100644 --- a/doc/apps/genpkey.pod +++ b/doc/apps/genpkey.pod @@ -190,6 +190,15 @@ The value to use for the generator B<g>. The default is 2. The type of DH parameters to generate. Use 0 for PKCS#3 DH and 1 for X9.42 DH. The default is 0. +=item B<dh_param>:I<name> + +Use a named DH group to select constant values for the DH parameters. +All other options will be ignored if this value is set. + +Valid values are: +"ffdhe2048", "ffdhe3072", "ffdhe4096", "ffdhe6144", "ffdhe8192", +"modp_1536", "modp_2048", "modp_3072", "modp_4096", "modp_6144", "modp_8192". + =item B<dh_rfc5114:num> If this option is set, then the appropriate RFC5114 parameters are used
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