diff options
Diffstat (limited to 'crypto/pem/pem_seal.c')
| -rw-r--r-- | crypto/pem/pem_seal.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/crypto/pem/pem_seal.c b/crypto/pem/pem_seal.c index 4e554e5481..d400c169c7 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); @@ -118,14 +119,15 @@ err: return(ret); } -void PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl, +int PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl, unsigned char *in, int inl) { unsigned char buffer[1600]; int i,j; *outl=0; - EVP_SignUpdate(&ctx->md,in,inl); + if (!EVP_SignUpdate(&ctx->md,in,inl)) + return 0; for (;;) { if (inl <= 0) break; @@ -133,13 +135,15 @@ void PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl, i=1200; else i=inl; - EVP_EncryptUpdate(&ctx->cipher,buffer,&j,in,i); + if (!EVP_EncryptUpdate(&ctx->cipher,buffer,&j,in,i)) + return 0; EVP_EncodeUpdate(&ctx->encode,out,&j,buffer,j); *outl+=j; out+=j; in+=i; inl-=i; } + return 1; } int PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl, @@ -163,7 +167,8 @@ 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; |