Add a new constructor to each public key algorithm (only the public

keys so far, private keys not changed) that takes an
AlgorithmIdentifier and a MemoryRegion<byte>&. This performs the X.509
decoding. It is not possible anymore to create uninitialized PK
objects.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/pubkey/dl_algo/dl_algo.cpp b/src/pubkey/dl_algo/dl_algo.cpp
index f035f852f..bf7ab0a6a 100644
--- a/src/pubkey/dl_algo/dl_algo.cpp
+++ b/src/pubkey/dl_algo/dl_algo.cpp
@@ -23,6 +23,16 @@ MemoryVector<byte> DL_Scheme_PublicKey::x509_subject_public_key() const
    return DER_Encoder().encode(y).get_contents();
    }
 
+DL_Scheme_PublicKey::DL_Scheme_PublicKey(const AlgorithmIdentifier& alg_id,
+                                         const MemoryRegion<byte>& key_bits,
+                                         DL_Group::Format format)
+   {
+   DataSource_Memory source(alg_id.parameters);
+   group.BER_decode(source, format);
+
+   BER_Decoder(key_bits).decode(y);
+   }
+
 /*
 * Return the X.509 public key decoder
 */