diff options
Diffstat (limited to 'pkcs1-rsa-sha256.c')
-rw-r--r-- | pkcs1-rsa-sha256.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/pkcs1-rsa-sha256.c b/pkcs1-rsa-sha256.c index a4d5bb1e..d41336f7 100644 --- a/pkcs1-rsa-sha256.c +++ b/pkcs1-rsa-sha256.c @@ -36,7 +36,7 @@ #include "bignum.h" #include "pkcs1.h" -#include "nettle-internal.h" +#include "gmp-glue.h" /* From RFC 3447, Public-Key Cryptography Standards (PKCS) #1: RSA * Cryptography Specifications Version 2.1. @@ -63,8 +63,9 @@ int pkcs1_rsa_sha256_encode(mpz_t m, size_t key_size, struct sha256_ctx *hash) { uint8_t *p; - TMP_DECL(em, uint8_t, NETTLE_MAX_BIGNUM_SIZE); - TMP_ALLOC(em, key_size); + TMP_GMP_DECL(em, uint8_t); + + TMP_GMP_ALLOC(em, key_size); p = _pkcs1_signature_prefix(key_size, em, sizeof(sha256_prefix), @@ -74,18 +75,23 @@ pkcs1_rsa_sha256_encode(mpz_t m, size_t key_size, struct sha256_ctx *hash) { sha256_digest(hash, SHA256_DIGEST_SIZE, p); nettle_mpz_set_str_256_u(m, key_size, em); + TMP_GMP_FREE(em); return 1; } else - return 0; + { + TMP_GMP_FREE(em); + return 0; + } } int pkcs1_rsa_sha256_encode_digest(mpz_t m, size_t key_size, const uint8_t *digest) { uint8_t *p; - TMP_DECL(em, uint8_t, NETTLE_MAX_BIGNUM_SIZE); - TMP_ALLOC(em, key_size); + TMP_GMP_DECL(em, uint8_t); + + TMP_GMP_ALLOC(em, key_size); p = _pkcs1_signature_prefix(key_size, em, sizeof(sha256_prefix), @@ -95,8 +101,12 @@ pkcs1_rsa_sha256_encode_digest(mpz_t m, size_t key_size, const uint8_t *digest) { memcpy(p, digest, SHA256_DIGEST_SIZE); nettle_mpz_set_str_256_u(m, key_size, em); + TMP_GMP_FREE(em); return 1; } else - return 0; + { + TMP_GMP_FREE(em); + return 0; + } } |