X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=gcrypt.c;h=f825f6c6a3de6388959d7b900f31ef9d48e6397b;hp=775abd764902b53cf60930270fc6fea73a62e9a1;hb=4a4d8f266a79275d7b2c902dc69b5ec8d46406b2;hpb=0a0a577bb91b6ec4e26a9432c08974a3f1f611ac;ds=inline

diff --git a/gcrypt.c b/gcrypt.c
index 775abd76..f825f6c6 100644
--- a/gcrypt.c
+++ b/gcrypt.c
@@ -164,7 +164,7 @@ static void pad_oaep(unsigned char *in, size_t in_len, unsigned char *out,
 /* rfc 3447, section 7.1.2 */
 static int unpad_oaep(unsigned char *in, size_t in_len, unsigned char *out,
 		size_t *out_len)
-{	int ret;
+{
 	unsigned char *masked_seed = in + 1;
 	unsigned char *db = in + 1 + HASH_SIZE;
 	unsigned char seed[HASH_SIZE], seed_mask[HASH_SIZE];
@@ -189,7 +189,7 @@ static int unpad_oaep(unsigned char *in, size_t in_len, unsigned char *out,
 	p++;
 	*out_len = in + in_len - p;
 	memcpy(out, p, *out_len);
-	return ret;
+	return 1;
 }
 
 struct asymmetric_key {
@@ -587,7 +587,7 @@ static int get_asn_public_key(const char *key_file, struct asymmetric_key **resu
 	key = para_malloc(sizeof(*key));
 	key->sexp = sexp;
 	*result = key;
-	ret = n_size * 8;
+	ret = n_size;
 	PARA_INFO_LOG("successfully read %u bit asn public key\n", n_size * 8);
 
 release_e:
@@ -763,7 +763,9 @@ static int decode_rsa(gcry_sexp_t sexp, int key_size, unsigned char *outbuf,
 	PARA_DEBUG_LOG("decrypted buffer before unpad (%d bytes):\n",
 		key_size);
 	dump_buffer("non-unpadded decrypted buffer", oaep_buf, key_size);;
-	unpad_oaep(oaep_buf, key_size, outbuf, nbytes);
+	ret = unpad_oaep(oaep_buf, key_size, outbuf, nbytes);
+	if (ret < 0)
+		goto out_mpi_release;
 	PARA_DEBUG_LOG("decrypted buffer after unpad (%zu bytes):\n",
 		*nbytes);
 	dump_buffer("unpadded decrypted buffer", outbuf, *nbytes);;