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Search found 5 matches
- Fri Sep 14, 2018 7:01 am
- Forum: Algorithm School
- Topic: Problem with ECC
- Replies: 5
- Views: 41489
Re: Problem with ECC
All right, I solved problem.
- Fri Sep 14, 2018 4:06 am
- Forum: Algorithm School
- Topic: ECDSA signature
- Replies: 5
- Views: 42968
Re: ECDSA signature
I have same problem with SECP_256k1. 
- Fri Sep 14, 2018 3:03 am
- Forum: Algorithm School
- Topic: Problem with ECC
- Replies: 5
- Views: 41489
Re: Problem with ECC
Okey, I coped with setW, the first byte must be 0x04.
But, JavaCard signature doesn't valid for https://www.javacardos.com/tools/ecdsa_sign_verify.html
Why?
But, JavaCard signature doesn't valid for https://www.javacardos.com/tools/ecdsa_sign_verify.html
Why?
- Thu Sep 13, 2018 3:24 am
- Forum: Algorithm School
- Topic: Problem with ECC
- Replies: 5
- Views: 41489
Re: Problem with ECC
OK, I understood, its TLV format. But I still have question about public key. JavaCard returns me "wrong data" for any tries setW() to ECDSA publicKey object. How to do this? What`s the format?
- Wed Sep 12, 2018 4:56 am
- Forum: Algorithm School
- Topic: Problem with ECC
- Replies: 5
- Views: 41489
Problem with ECC
Hi, guys. I have written some code for signing messages by ECDSA algorithm. But JavaCard returns me every time different values with different sizes. For example: 30450221008443B0B08EACBF7B4F718AF441154CE79391AC2206715A13950DBDF65E2004A2022041C8086F556D4BD4F5B0B87412A3982F75C12447901886BE01F0EBC44C9...