diff options
author | Andy Polyakov <appro@openssl.org> | 2014-04-06 17:19:54 +0200 |
---|---|---|
committer | Andy Polyakov <appro@openssl.org> | 2014-04-06 17:22:12 +0200 |
commit | f396e9f4fc609d752eafffc155d4588cc4fffe94 (patch) | |
tree | f78217c1d758bf467559e12f2885c9aaf95cf9c3 /crypto/modes | |
parent | dacb698ada2579bccfc3d88662f8cca75fb1b9aa (diff) |
crypto/modes/gcm128.c: more strict aliasing fixes.
(cherry picked from commit 997d1aac7cfb957decb62d8f0034a7eca6177fec)
Diffstat (limited to 'crypto/modes')
-rw-r--r-- | crypto/modes/gcm128.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/crypto/modes/gcm128.c b/crypto/modes/gcm128.c index 93fcf11866..5afea6e3bb 100644 --- a/crypto/modes/gcm128.c +++ b/crypto/modes/gcm128.c @@ -844,7 +844,11 @@ void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx,const unsigned char *iv,size_t len) GCM_MUL(ctx,Yi); if (is_endian.little) +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else ctr = GETU32(ctx->Yi.c+12); +#endif else ctr = ctx->Yi.d[3]; } @@ -852,7 +856,11 @@ void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx,const unsigned char *iv,size_t len) (*ctx->block)(ctx->Yi.c,ctx->EK0.c,ctx->key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; } @@ -947,7 +955,11 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, } if (is_endian.little) +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else ctr = GETU32(ctx->Yi.c+12); +#endif else ctr = ctx->Yi.d[3]; @@ -981,7 +993,11 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; for (i=0; i<16/sizeof(size_t); ++i) @@ -1003,7 +1019,11 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; for (i=0; i<16/sizeof(size_t); ++i) @@ -1022,7 +1042,11 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; for (i=0; i<16/sizeof(size_t); ++i) @@ -1038,7 +1062,11 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; while (len--) { @@ -1056,7 +1084,11 @@ int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; } @@ -1100,7 +1132,11 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, } if (is_endian.little) +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else ctr = GETU32(ctx->Yi.c+12); +#endif else ctr = ctx->Yi.d[3]; @@ -1137,7 +1173,11 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; for (i=0; i<16/sizeof(size_t); ++i) @@ -1157,7 +1197,11 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; for (i=0; i<16/sizeof(size_t); ++i) @@ -1175,7 +1219,11 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; for (i=0; i<16/sizeof(size_t); ++i) { @@ -1193,7 +1241,11 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; while (len--) { @@ -1214,7 +1266,11 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, (*block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; } @@ -1259,7 +1315,11 @@ int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, } if (is_endian.little) +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else ctr = GETU32(ctx->Yi.c+12); +#endif else ctr = ctx->Yi.d[3]; @@ -1281,7 +1341,11 @@ int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, (*stream)(in,out,GHASH_CHUNK/16,key,ctx->Yi.c); ctr += GHASH_CHUNK/16; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; GHASH(ctx,out,GHASH_CHUNK); @@ -1296,7 +1360,11 @@ int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, (*stream)(in,out,j,key,ctx->Yi.c); ctr += (unsigned int)j; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; in += i; @@ -1316,7 +1384,11 @@ int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, (*ctx->block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; while (len--) { @@ -1358,7 +1430,11 @@ int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, } if (is_endian.little) +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else ctr = GETU32(ctx->Yi.c+12); +#endif else ctr = ctx->Yi.d[3]; @@ -1383,7 +1459,11 @@ int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, (*stream)(in,out,GHASH_CHUNK/16,key,ctx->Yi.c); ctr += GHASH_CHUNK/16; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; out += GHASH_CHUNK; @@ -1409,7 +1489,11 @@ int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, (*stream)(in,out,j,key,ctx->Yi.c); ctr += (unsigned int)j; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; out += i; @@ -1420,7 +1504,11 @@ int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, (*ctx->block)(ctx->Yi.c,ctx->EKi.c,key); ++ctr; if (is_endian.little) +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else PUTU32(ctx->Yi.c+12,ctr); +#endif else ctx->Yi.d[3] = ctr; while (len--) { |