diff options
author | Ben Laurie <ben@openssl.org> | 2012-06-08 09:18:47 +0000 |
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committer | Ben Laurie <ben@openssl.org> | 2012-06-08 09:18:47 +0000 |
commit | af454b5bb09bf647b4854dc277f2eefc151b2608 (patch) | |
tree | dc263a92a0e3e5c73ec5ea049a92411f51e0eb57 /crypto/pem | |
parent | 5b2bbf37fa2f90ac1b6ab381179d739ae376723b (diff) |
Reduce version skew.
Diffstat (limited to 'crypto/pem')
-rw-r--r-- | crypto/pem/pem_lib.c | 27 | ||||
-rw-r--r-- | crypto/pem/pem_seal.c | 6 |
2 files changed, 21 insertions, 12 deletions
diff --git a/crypto/pem/pem_lib.c b/crypto/pem/pem_lib.c index cfc89a9921..5a421fc4b6 100644 --- a/crypto/pem/pem_lib.c +++ b/crypto/pem/pem_lib.c @@ -394,7 +394,8 @@ int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, goto err; /* The 'iv' is used as the iv and as a salt. It is * NOT taken from the BytesToKey function */ - EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL); + if (!EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL)) + goto err; if (kstr == (unsigned char *)buf) OPENSSL_cleanse(buf,PEM_BUFSIZE); @@ -406,12 +407,15 @@ int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, /* k=strlen(buf); */ EVP_CIPHER_CTX_init(&ctx); - EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv); - EVP_EncryptUpdate(&ctx,data,&j,data,i); - EVP_EncryptFinal_ex(&ctx,&(data[j]),&i); + ret = 1; + if (!EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv) + || !EVP_EncryptUpdate(&ctx,data,&j,data,i) + || !EVP_EncryptFinal_ex(&ctx,&(data[j]),&i)) + ret = 0; EVP_CIPHER_CTX_cleanup(&ctx); + if (ret == 0) + goto err; i+=j; - ret=1; } else { @@ -459,14 +463,17 @@ int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen, ebcdic2ascii(buf, buf, klen); #endif - EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]), - (unsigned char *)buf,klen,1,key,NULL); + if (!EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]), + (unsigned char *)buf,klen,1,key,NULL)) + return 0; j=(int)len; EVP_CIPHER_CTX_init(&ctx); - EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0])); - EVP_DecryptUpdate(&ctx,data,&i,data,j); - o=EVP_DecryptFinal_ex(&ctx,&(data[i]),&j); + o = EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0])); + if (o) + o = EVP_DecryptUpdate(&ctx,data,&i,data,j); + if (o) + o = EVP_DecryptFinal_ex(&ctx,&(data[i]),&j); EVP_CIPHER_CTX_cleanup(&ctx); OPENSSL_cleanse((char *)buf,sizeof(buf)); OPENSSL_cleanse((char *)key,sizeof(key)); diff --git a/crypto/pem/pem_seal.c b/crypto/pem/pem_seal.c index 59690b56ae..b6b4e13498 100644 --- a/crypto/pem/pem_seal.c +++ b/crypto/pem/pem_seal.c @@ -96,7 +96,8 @@ int PEM_SealInit(PEM_ENCODE_SEAL_CTX *ctx, EVP_CIPHER *type, EVP_MD *md_type, EVP_EncodeInit(&ctx->encode); EVP_MD_CTX_init(&ctx->md); - EVP_SignInit(&ctx->md,md_type); + if (!EVP_SignInit(&ctx->md,md_type)) + goto err; EVP_CIPHER_CTX_init(&ctx->cipher); ret=EVP_SealInit(&ctx->cipher,type,ek,ekl,iv,pubk,npubk); @@ -163,7 +164,8 @@ int PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl, goto err; } - EVP_EncryptFinal_ex(&ctx->cipher,s,(int *)&i); + if (!EVP_EncryptFinal_ex(&ctx->cipher,s,(int *)&i)) + goto err; EVP_EncodeUpdate(&ctx->encode,out,&j,s,i); *outl=j; out+=j; |