security-and-privacy/gnupg
security-and-privacy/gnupg
1
0
Fork 0
mirror of git://git.gnupg.org/gnupg.git synced 2025-07-02 22:46:30 +02:00
Code Activity

ElGamal funktioniert und ist default

Browse source
This commit is contained in:
Werner Koch 1997-11-24 22:24:04 +00:00
parent a51cca90b6
commit 46900fbd43
31 changed files with 1273 additions and 409 deletions
Download patch file Download diff file Expand all files Collapse all files

8
cipher/rsa.c
View file

@ -95,8 +95,8 @@ rsa_generate( RSA_public_key *pk, RSA_secret_key *sk, unsigned nbits )
MPI f;
/* select two (very secret) primes */
p = generate_random_prime( nbits / 2 );
q = generate_random_prime( nbits / 2 );
p = generate_secret_prime( nbits / 2 );
q = generate_secret_prime( nbits / 2 );
if( mpi_cmp( p, q ) > 0 ) /* p shall be smaller than q (for calc of u)*/
mpi_swap(p,q);
/* calculate Euler totient: phi = (p-1)(q-1) */
@ -120,10 +120,10 @@ rsa_generate( RSA_public_key *pk, RSA_secret_key *sk, unsigned nbits )
mpi_add_ui( e, e, 2);
/* calculate the secret key d = e^1 mod phi */
d = mpi_alloc( nbits / BITS_PER_MPI_LIMB );
mpi_inv_mod(d, e, f );
mpi_invm(d, e, f );
/* calculate the inverse of p and q (used for chinese remainder theorem)*/
u = mpi_alloc( nbits / BITS_PER_MPI_LIMB );
mpi_inv_mod(u, p, q );
mpi_invm(u, p, q );
if( DBG_CIPHER ) {
log_mpidump(" p= ", p );