Add the Kyber variant GPGME_PK_MLKEM and MLDSA from RFC9980.HEADmaster

* src/gpgme.h.in (GPGME_PK_MLKEM, GPGME_PK_MLDSA): New.
* src/conversion.c (_gpgme_map_pk_algo): Map the new MLDSA, MLKEM, and
  RFC9580 algo variants.
* src/gpgme.c (gpgme_pubkey_algo_string): Mark MLDSA and MLKEM as
  composite.
(gpgme_pubkey_algo_name): Add re-mapping.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/conversion.c b/src/conversion.c
index 11e03e9c..b36457c1 100644
--- a/src/conversion.c
+++ b/src/conversion.c
@@ -693,6 +693,24 @@ _gpgme_map_pk_algo (int algo, gpgme_protocol_t protocol)
         case 19: algo = GPGME_PK_ECDSA; break;
         case 20: break;
         case 22: algo = GPGME_PK_EDDSA; break;
+
+        case 25: algo = GPGME_PK_ECDH;  break;  /* X25519 (RFC9580).  */
+        case 27: algo = GPGME_PK_EDDSA; break;  /* Ed25519 (RFC9580). */
+
+        case 30: /* ML-DSA-65+Ed25519 (RFC9980)      */
+        case 31: /* ML-DSA-87+Ed448 (RFC9980)        */
+          algo = GPGME_PK_MLDSA;
+          break;
+
+        case 35: /* ML-KEM-768+X25519 (RFC9980)      */
+        case 36: /* ML-KEM-1024+X448 (RFC9980)       */
+        case 37: /* ML-KEM-768+ECDH-NIST-P-384       */
+        case 38: /* ML-KEM-1024+ECDH-NIST-P-521      */
+        case 39: /* ML-KEM-768+ECDH-brainpoolP384r1  */
+        case 40: /* ML-KEM-1024+ECDH-brainpoolP512r1 */
+          algo = GPGME_PK_MLKEM;
+          break;
+
         default: algo = 0; break; /* Unknown.  */
         }
     }