diff options
| -rw-r--r-- | src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c b/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c index 2b2c7f249..32a72ac96 100644 --- a/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c +++ b/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c @@ -475,7 +475,7 @@ gmp_rsa_public_key_t *gmp_rsa_public_key_load(key_type_t type, va_list args) } break; } - if (!e.ptr || !n.ptr) + if (!e.len || !n.len || (n.ptr[n.len-1] & 0x01) == 0) { return NULL; } @@ -506,5 +506,10 @@ gmp_rsa_public_key_t *gmp_rsa_public_key_load(key_type_t type, va_list args) this->k = (mpz_sizeinbase(this->n, 2) + 7) / BITS_PER_BYTE; + if (!mpz_sgn(this->e)) + { + destroy(this); + return NULL; + } return &this->public; } |