Hi,
I need to sign something with ECDSA using the secret key which is stored in
the PKCS#8 file. But when I load the key (DL_Keys_ECDSA<ECP>::PrivateKey) I
get exception: "BERDecodeErr". So I tried to generate random key, store it
to the file and load it from there to findout wheather my PKCS file is
incorrect or what. But I got the same exception. Does anyone know how to
load the EC keys from the file?
My example:
#include "dll.h"
#include "oids.h"
...
...
...
AutoSeededX917RNG<DES_EDE3> m_rng;
DL_GroupParameters_EC<ECP> params(ASN1::secp224r1());
DL_Keys_ECDSA<ECP>::PrivateKey priv;
priv.Initialize(m_rng, params);
ByteQueue bq;
priv.DEREncode(bq);
FileSink *fs = new FileSink("ECprivateKeyDER.bin", true);
unsigned long size = bq.MaxRetrievable();
unsigned char * data = new unsigned char[size];
bq.Get(data, size);
fs->Put2(data, size, 0, true);
fs->Flush(true);
delete fs;
delete []data;
FileSource source("ECprivateKeyDER.bin", true, new HexDecoder(), true);
DL_Keys_ECDSA<ECP>::PrivateKey privLoaded;
privLoaded.Load(source); // throws exception
Thanks.
Rasti.
By the way, on the web link to public key algorithms hierarchy
(http://cryptopp.com/pubkey.gif ) is broken.
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