diff options
Diffstat (limited to 'crypto/evp/evp_key.c')
| -rw-r--r-- | crypto/evp/evp_key.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/crypto/evp/evp_key.c b/crypto/evp/evp_key.c index 361ea69..7961fbe 100644 --- a/crypto/evp/evp_key.c +++ b/crypto/evp/evp_key.c @@ -90,6 +90,11 @@ char *EVP_get_pw_prompt(void) * this function will fail */ int EVP_read_pw_string(char *buf, int len, const char *prompt, int verify) { + return EVP_read_pw_string_min(buf, 0, len, prompt, verify); + } + +int EVP_read_pw_string_min(char *buf, int min, int len, const char *prompt, int verify) + { int ret; char buff[BUFSIZ]; UI *ui; @@ -97,10 +102,10 @@ int EVP_read_pw_string(char *buf, int len, const char *prompt, int verify) if ((prompt == NULL) && (prompt_string[0] != '\0')) prompt=prompt_string; ui = UI_new(); - UI_add_input_string(ui,prompt,0,buf,0,(len>=BUFSIZ)?BUFSIZ-1:len); + UI_add_input_string(ui,prompt,0,buf,min,(len>=BUFSIZ)?BUFSIZ-1:len); if (verify) UI_add_verify_string(ui,prompt,0, - buff,0,(len>=BUFSIZ)?BUFSIZ-1:len,buf); + buff,min,(len>=BUFSIZ)?BUFSIZ-1:len,buf); ret = UI_process(ui); UI_free(ui); OPENSSL_cleanse(buff,BUFSIZ); @@ -115,7 +120,7 @@ int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md, unsigned char md_buf[EVP_MAX_MD_SIZE]; int niv,nkey,addmd=0; unsigned int mds=0,i; - + int rv = 0; nkey=type->key_len; niv=type->iv_len; OPENSSL_assert(nkey <= EVP_MAX_KEY_LENGTH); @@ -129,17 +134,24 @@ int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md, if (!EVP_DigestInit_ex(&c,md, NULL)) return 0; if (addmd++) - EVP_DigestUpdate(&c,&(md_buf[0]),mds); - EVP_DigestUpdate(&c,data,datal); + if (!EVP_DigestUpdate(&c,&(md_buf[0]),mds)) + goto err; + if (!EVP_DigestUpdate(&c,data,datal)) + goto err; if (salt != NULL) - EVP_DigestUpdate(&c,salt,PKCS5_SALT_LEN); - EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds); + if (!EVP_DigestUpdate(&c,salt,PKCS5_SALT_LEN)) + goto err; + if (!EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds)) + goto err; for (i=1; i<(unsigned int)count; i++) { - EVP_DigestInit_ex(&c,md, NULL); - EVP_DigestUpdate(&c,&(md_buf[0]),mds); - EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds); + if (!EVP_DigestInit_ex(&c,md, NULL)) + goto err; + if (!EVP_DigestUpdate(&c,&(md_buf[0]),mds)) + goto err; + if (!EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds)) + goto err; } i=0; if (nkey) @@ -168,8 +180,10 @@ int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md, } if ((nkey == 0) && (niv == 0)) break; } + rv = type->key_len; + err: EVP_MD_CTX_cleanup(&c); OPENSSL_cleanse(&(md_buf[0]),EVP_MAX_MD_SIZE); - return(type->key_len); + return rv; } |
