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RT4002: check for NULL cipher in p12_crpt.c

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The NULL cipher case can't actually happen because we have no
EVP_PBE_CTL combinations where cipher_nid is -1 and keygen is
PKCS12_PBE_keyivgen. But make the code more obviously correct.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 394f7b6fcc)
This commit is contained in:
Emilia Kasper 2015-09-01 14:56:58 +02:00
parent 9d4798a9e0
commit bae16c98c1
1 changed files with 3 additions and 0 deletions
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3
crypto/pkcs12/p12_crpt.c
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@ -77,6 +77,9 @@ int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
const unsigned char *pbuf;
unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
if (cipher == NULL)
return 0;
/* Extract useful info from parameter */
if (param == NULL || param->type != V_ASN1_SEQUENCE ||
param->value.sequence == NULL) {