diff options
Diffstat (limited to 'crypto/dsa/dsa_pmeth.c')
| -rw-r--r-- | crypto/dsa/dsa_pmeth.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/crypto/dsa/dsa_pmeth.c b/crypto/dsa/dsa_pmeth.c index 7872483..7f00e97 100644 --- a/crypto/dsa/dsa_pmeth.c +++ b/crypto/dsa/dsa_pmeth.c @@ -3,7 +3,7 @@ * 2006. */ /* ==================================================================== - * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * Copyright (c) 2006-2018 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -230,10 +230,16 @@ static int pkey_dsa_ctrl_str(EVP_PKEY_CTX *ctx, EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS, qbits, NULL); } - if (!strcmp(type, "dsa_paramgen_md")) { + if (strcmp(type, "dsa_paramgen_md") == 0) { + const EVP_MD *md = EVP_get_digestbyname(value); + + if (md == NULL) { + DSAerr(DSA_F_PKEY_DSA_CTRL_STR, DSA_R_INVALID_DIGEST_TYPE); + return 0; + } return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA, EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0, - (void *)EVP_get_digestbyname(value)); + (void *)md); } return -2; } |