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openssl-1_1.24730
0006-s390x-assembly-pack-add-KM-code-path-for-a...
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File 0006-s390x-assembly-pack-add-KM-code-path-for-aes-ecb.patch of Package openssl-1_1.24730
From 55bd169fd874f65fa15b20ce4feae2e8ed5e77f1 Mon Sep 17 00:00:00 2001 From: Patrick Steuer <patrick.steuer@de.ibm.com> Date: Wed, 28 Mar 2018 12:43:15 +0100 Subject: [PATCH] s390x assembly pack: add KM code path for aes-ecb Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com> Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/5250) --- crypto/evp/e_aes.c | 92 ++++++++++++++++++++++++++++++++++++---------- 1 file changed, 72 insertions(+), 20 deletions(-) diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index 1d5007acf8..c595f558e0 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -956,6 +956,21 @@ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ */ # include "s390x_arch.h" +typedef struct { + union { + double align; + /*- + * KM-AES parameter block - begin + * (see z/Architecture Principles of Operation >= SA22-7832-06) + */ + struct { + unsigned char k[32]; + } param; + /* KM-AES parameter block - end */ + } km; + unsigned int fc; +} S390X_AES_ECB_CTX; + typedef struct { union { double align; @@ -1056,18 +1071,16 @@ typedef struct { } aes; } S390X_AES_CCM_CTX; -# define S390X_aes_128_CAPABLE ((OPENSSL_s390xcap_P.km[0] & \ - S390X_CAPBIT(S390X_AES_128)) &&\ - (OPENSSL_s390xcap_P.kmc[0] & \ - S390X_CAPBIT(S390X_AES_128))) -# define S390X_aes_192_CAPABLE ((OPENSSL_s390xcap_P.km[0] & \ - S390X_CAPBIT(S390X_AES_192)) &&\ - (OPENSSL_s390xcap_P.kmc[0] & \ - S390X_CAPBIT(S390X_AES_192))) -# define S390X_aes_256_CAPABLE ((OPENSSL_s390xcap_P.km[0] & \ - S390X_CAPBIT(S390X_AES_256)) &&\ - (OPENSSL_s390xcap_P.kmc[0] & \ - S390X_CAPBIT(S390X_AES_256))) +/* Convert key size to function code: [16,24,32] -> [18,19,20]. */ +# define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6)) + +/* Most modes of operation need km for partial block processing. */ +# define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \ + S390X_CAPBIT(S390X_AES_128)) +# define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \ + S390X_CAPBIT(S390X_AES_192)) +# define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \ + S390X_CAPBIT(S390X_AES_256)) # define s390x_aes_init_key aes_init_key static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, @@ -1076,22 +1089,48 @@ static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */ # define S390X_aes_192_cbc_CAPABLE 1 # define S390X_aes_256_cbc_CAPABLE 1 +# define S390X_AES_CBC_CTX EVP_AES_KEY + +# define s390x_aes_cbc_init_key aes_init_key # define s390x_aes_cbc_cipher aes_cbc_cipher static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len); -# define S390X_aes_128_ecb_CAPABLE 0 -# define S390X_aes_192_ecb_CAPABLE 0 -# define S390X_aes_256_ecb_CAPABLE 0 +# define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE +# define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE +# define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE + +static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, + const unsigned char *iv, int enc) +{ + S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx); + const int keylen = EVP_CIPHER_CTX_key_length(ctx); + + cctx->fc = S390X_AES_FC(keylen); + if (!enc) + cctx->fc |= S390X_DECRYPT; + + memcpy(cctx->km.param.k, key, keylen); + return 1; +} -# define s390x_aes_ecb_cipher aes_ecb_cipher static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len); + const unsigned char *in, size_t len) +{ + S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx); + + s390x_km(in, len, out, cctx->fc, &cctx->km.param); + return 1; +} # define S390X_aes_128_ofb_CAPABLE 0 # define S390X_aes_192_ofb_CAPABLE 0 # define S390X_aes_256_ofb_CAPABLE 0 +# define S390X_AES_OFB_CTX EVP_AES_KEY + +# define s390x_aes_ofb_init_key aes_init_key # define s390x_aes_ofb_cipher aes_ofb_cipher static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, @@ -1100,6 +1139,9 @@ static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, # define S390X_aes_128_cfb_CAPABLE 0 # define S390X_aes_192_cfb_CAPABLE 0 # define S390X_aes_256_cfb_CAPABLE 0 +# define S390X_AES_CFB_CTX EVP_AES_KEY + +# define s390x_aes_cfb_init_key aes_init_key # define s390x_aes_cfb_cipher aes_cfb_cipher static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, @@ -1109,6 +1151,8 @@ static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, # define S390X_aes_192_cfb8_CAPABLE 0 # define S390X_aes_256_cfb8_CAPABLE 0 +# define s390x_aes_cfb8_init_key aes_init_key + # define s390x_aes_cfb8_cipher aes_cfb8_cipher static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len); @@ -1117,6 +1161,8 @@ static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, # define S390X_aes_192_cfb1_CAPABLE 0 # define S390X_aes_256_cfb1_CAPABLE 0 +# define s390x_aes_cfb1_init_key aes_init_key + # define s390x_aes_cfb1_cipher aes_cfb1_cipher static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len); @@ -1124,6 +1170,9 @@ static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */ # define S390X_aes_192_ctr_CAPABLE 1 # define S390X_aes_256_ctr_CAPABLE 1 +# define S390X_AES_CTR_CTX EVP_AES_KEY + +# define s390x_aes_ctr_init_key aes_init_key # define s390x_aes_ctr_cipher aes_ctr_cipher static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, @@ -2168,10 +2217,10 @@ static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \ keylen / 8, \ ivlen, \ flags | EVP_CIPH_##MODE##_MODE, \ - s390x_aes_init_key, \ + s390x_aes_##mode##_init_key, \ s390x_aes_##mode##_cipher, \ NULL, \ - sizeof(EVP_AES_KEY), \ + sizeof(S390X_AES_##MODE##_CTX), \ NULL, \ NULL, \ NULL, \ @@ -2187,7 +2236,10 @@ static const EVP_CIPHER aes_##keylen##_##mode = { \ aes_##mode##_cipher, \ NULL, \ sizeof(EVP_AES_KEY), \ - NULL,NULL,NULL,NULL \ + NULL, \ + NULL, \ + NULL, \ + NULL \ }; \ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \ { \ -- 2.20.1
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