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Free resources in rsa_t.
[tinc]
/
src
/
gcrypt
/
rsa.c
diff --git
a/src/gcrypt/rsa.c
b/src/gcrypt/rsa.c
index
62a2129
..
e38b50b
100644
(file)
--- a/
src/gcrypt/rsa.c
+++ b/
src/gcrypt/rsa.c
@@
-184,7
+184,7
@@
bool rsa_set_hex_public_key(rsa_t *rsa, char *n, char *e) {
gcry_error_t err = 0;
err = gcry_mpi_scan(&rsa->n, GCRYMPI_FMT_HEX, n, 0, NULL)
gcry_error_t err = 0;
err = gcry_mpi_scan(&rsa->n, GCRYMPI_FMT_HEX, n, 0, NULL)
- ?: gcry_mpi_scan(&rsa->e, GCRYMPI_FMT_HEX,
n
, 0, NULL);
+ ?: gcry_mpi_scan(&rsa->e, GCRYMPI_FMT_HEX,
e
, 0, NULL);
if(err) {
logger(LOG_ERR, "Error while reading RSA public key: %s", gcry_strerror(errno));
if(err) {
logger(LOG_ERR, "Error while reading RSA public key: %s", gcry_strerror(errno));
@@
-198,8
+198,8
@@
bool rsa_set_hex_private_key(rsa_t *rsa, char *n, char *e, char *d) {
gcry_error_t err = 0;
err = gcry_mpi_scan(&rsa->n, GCRYMPI_FMT_HEX, n, 0, NULL)
gcry_error_t err = 0;
err = gcry_mpi_scan(&rsa->n, GCRYMPI_FMT_HEX, n, 0, NULL)
- ?: gcry_mpi_scan(&rsa->e, GCRYMPI_FMT_HEX,
n
, 0, NULL)
- ?: gcry_mpi_scan(&rsa->d, GCRYMPI_FMT_HEX,
n
, 0, NULL);
+ ?: gcry_mpi_scan(&rsa->e, GCRYMPI_FMT_HEX,
e
, 0, NULL)
+ ?: gcry_mpi_scan(&rsa->d, GCRYMPI_FMT_HEX,
d
, 0, NULL);
if(err) {
logger(LOG_ERR, "Error while reading RSA public key: %s", gcry_strerror(errno));
if(err) {
logger(LOG_ERR, "Error while reading RSA public key: %s", gcry_strerror(errno));
@@
-276,6
+276,10
@@
bool rsa_public_encrypt(rsa_t *rsa, void *in, size_t len, void *out) {
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->e, rsa->n);
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->e, rsa->n);
+ int pad = len - (gcry_mpi_get_nbits(outmpi) + 7) / 8;
+ while(pad--)
+ *(char *)out++ = 0;
+
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
@@
-288,7
+292,17
@@
bool rsa_private_decrypt(rsa_t *rsa, void *in, size_t len, void *out) {
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->d, rsa->n);
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->d, rsa->n);
+ int pad = len - (gcry_mpi_get_nbits(outmpi) + 7) / 8;
+ while(pad--)
+ *(char *)out++ = 0;
+
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
}
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
}
+
+void rsa_free(rsa_t *rsa) {
+ gcry_mpi_release(rsa->n);
+ gcry_mpi_release(rsa->e);
+ gcry_mpi_release(rsa->d);
+}