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| author | Werner Koch <[email protected]> | 1997-12-09 12:46:23 +0000 |
|---|---|---|
| committer | Werner Koch <[email protected]> | 1997-12-09 12:46:23 +0000 |
| commit | 935965049d424d3bb69efb672f9f44c36e7cbcb6 (patch) | |
| tree | 37113923fa101828e1b43a8a71b9a85e17cd82a8 /cipher/rsa.c | |
| parent | detached signatures are working (diff) | |
| download | gnupg-935965049d424d3bb69efb672f9f44c36e7cbcb6.tar.gz gnupg-935965049d424d3bb69efb672f9f44c36e7cbcb6.zip | |
fingerprints and self signatures added
Diffstat (limited to 'cipher/rsa.c')
| -rw-r--r-- | cipher/rsa.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/cipher/rsa.c b/cipher/rsa.c index a1f08457b..db82b48d7 100644 --- a/cipher/rsa.c +++ b/cipher/rsa.c @@ -157,6 +157,22 @@ rsa_generate( RSA_public_key *pk, RSA_secret_key *sk, unsigned nbits ) } +/**************** + * Test wether the secret key is valid. + * Returns: true if this is a valid key. + */ +int +rsa_check_secret_key( RSA_secret_key *sk ) +{ + int rc; + MPI temp = mpi_alloc( mpi_get_nlimbs(sk->p)*2 ); + + mpi_mul(temp, sk->p, sk->q ); + rc = mpi_cmp( temp, sk->n ); + mpi_free(temp); + return !rc; +} + /**************** |