diff options
Diffstat (limited to 'pkcs1-rsa-md5.c')
| -rw-r--r-- | pkcs1-rsa-md5.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/pkcs1-rsa-md5.c b/pkcs1-rsa-md5.c index c337232d..d3ccd8b0 100644 --- a/pkcs1-rsa-md5.c +++ b/pkcs1-rsa-md5.c @@ -38,6 +38,8 @@ #include "bignum.h" #include "pkcs1.h" +#include "nettle-internal.h" + /* From pkcs-1v2 * * md5 OBJECT IDENTIFIER ::= @@ -64,7 +66,8 @@ md5_prefix[] = void pkcs1_rsa_md5_encode(mpz_t m, unsigned length, struct md5_ctx *hash) { - uint8_t *em = alloca(length); + TMP_DECL(em, uint8_t, NETTLE_MAX_BIGNUM_BITS / 8); + TMP_ALLOC(em, length); assert(length >= MD5_DIGEST_SIZE); pkcs1_signature_prefix(length - MD5_DIGEST_SIZE, em, @@ -78,7 +81,8 @@ pkcs1_rsa_md5_encode(mpz_t m, unsigned length, struct md5_ctx *hash) void pkcs1_rsa_md5_encode_digest(mpz_t m, unsigned length, const uint8_t *digest) { - uint8_t *em = alloca(length); + TMP_DECL(em, uint8_t, NETTLE_MAX_BIGNUM_BITS / 8); + TMP_ALLOC(em, length); assert(length >= MD5_DIGEST_SIZE); pkcs1_signature_prefix(length - MD5_DIGEST_SIZE, em, |