Libgcrypt supports the RSA (Rivest-Shamir-Adleman)
algorithms as well as DSA (Digital Signature Algorithm) and Elgamal.
The versatile interface allows to add more algorithms in the future.
— Data type:
gcry_ac_id_t
The following constants are defined for this type:
GCRY_AC_RSA- Rivest-Shamir-Adleman
GCRY_AC_DSA- Digital Signature Algorithm
GCRY_AC_ELG- Elgamal
GCRY_AC_ELG_E- Elgamal, encryption only.