add DSA support to PEM decoder

Signed-off-by: Steffen Jaeckel <s@jaeckel.eu>

Author: sjaeckel

src/misc/pem/pem_decode.c

@@ -336,6 +336,10 @@ static int s_decode(struct get_char *g, ltc_pka_key *k, password_ctx *pw_ctx)
          goto cleanup;
       }
       switch (pka) {
+         case LTC_OID_DSA:
+            err = dsa_import_pkcs8_asn1(alg_id, priv_key, &k->u.dsa);
+            k->id = LTC_PKA_DSA;
+            break;
          case LTC_OID_RSA:
             err = rsa_import_pkcs8_asn1(alg_id, priv_key, &k->u.rsa);
             k->id = LTC_PKA_RSA;
@@ -371,6 +375,10 @@ static int s_decode(struct get_char *g, ltc_pka_key *k, password_ctx *pw_ctx)
       }
    }
    switch (hdr.id->pka) {
+      case LTC_OID_DSA:
+         err = dsa_import(pem, l, &k->u.dsa);
+         k->id = LTC_PKA_DSA;
+         break;
       case LTC_OID_RSA:
          err = rsa_import(pem, l, &k->u.rsa);
          k->id = LTC_PKA_RSA;

tests/pem/dsa-encrypted.pem

@@ -0,0 +1,15 @@
+-----BEGIN DSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: AES-256-CBC,B2C493F67D2CD758E063D3F1CDB32CF1
+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+-----END DSA PRIVATE KEY-----

tests/pem/dsa-encrypted.pk8

@@ -0,0 +1,12 @@
+-----BEGIN ENCRYPTED PRIVATE KEY-----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+-----END ENCRYPTED PRIVATE KEY-----

tests/pem/dsa.pem

@@ -0,0 +1,12 @@
+-----BEGIN DSA PRIVATE KEY-----
+MIIBuwIBAAKBgQDFCjdRXKvWGNWicL1Kb2tK+eE5lQ8rmTh9mmTWTLWWetztrKis
+xhtlWt7bAGElGhgs7qEHkGJeTRIxkMcDIfoJ57Fz146v2/2/s++t0aEqA23nBpJK
+hSr/egFmUx/qxmdBhFrAbO1i+cJiYgWk+kigZuw1yagR/rmBq+6+Mba/zwIVAKpb
+1/TlBiQT5Yg1ygDHpjVxYZTFAoGAO5Lk/1kpFQsImVp78q0UQFVvoEf/kJmzRLPU
+/EUVBa5nIkOcujcQpYlHN+zM9a6tqLR6Ncudk1zt5rB+lpTEpgx91nCKCU+BSg7C
+E/vrFr/qpPRW/3IwBd6KRD++xoUmVdYtHR7bFdqkRYM8F5eYC42H80kNkL2pq2du
+h2hyI9wCgYBTFrD7v1mKXlWVwU+sQ7gIU+bPDZIj+rGEWVI5v8vyLTg63ZNSBUl+
+KxLEYXPjb1S9luWnqqlaWKS3Z9LAvcgesToST5jABe85XWq6tws72LeV3XluotKE
+c0cDiLRk2bm4T/HJNLv5c2b1fC4R/sMx5gg4WWeB621BJ9cNdK+gNQIVAJk25eTp
++yi+kfUGX+jJNbP12B/F
+-----END DSA PRIVATE KEY-----

tests/pem/dsa.pk8

@@ -0,0 +1,9 @@
+-----BEGIN PRIVATE KEY-----
+MIIBSwIBADCCASsGByqGSM44BAEwggEeAoGBAMUKN1Fcq9YY1aJwvUpva0r54TmV
+DyuZOH2aZNZMtZZ63O2sqKzGG2Va3tsAYSUaGCzuoQeQYl5NEjGQxwMh+gnnsXPX
+jq/b/b+z763RoSoDbecGkkqFKv96AWZTH+rGZ0GEWsBs7WL5wmJiBaT6SKBm7DXJ
+qBH+uYGr7r4xtr/PAhUAqlvX9OUGJBPliDXKAMemNXFhlMUCgYA7kuT/WSkVCwiZ
+WnvyrRRAVW+gR/+QmbNEs9T8RRUFrmciQ5y6NxCliUc37Mz1rq2otHo1y52TXO3m
+sH6WlMSmDH3WcIoJT4FKDsIT++sWv+qk9Fb/cjAF3opEP77GhSZV1i0dHtsV2qRF
+gzwXl5gLjYfzSQ2QvamrZ26HaHIj3AQXAhUAmTbl5On7KL6R9QZf6Mk1s/XYH8U=
+-----END PRIVATE KEY-----