Tag: ecdsa

Categories
Cryptography

Question on DER-encoding of signature pair (r, s)

I’ve been working through the byte-level details of bitcoin transactions and I need some help on DER-encoding.Continue readingQuestion on DER-encoding of signature pair (r, s)

Categories
Cryptography

How does “recid” variable work in libspec256k1 library?

binary numbers on computer screen matrix background

I’m trying to understand how does “recid” (Recovery ID) variable work in libspec256k1 library (with C language).Continue readingHow does “recid” variable work in libspec256k1 library?

Categories
Cryptography

Bitcoind does not like ECDSA (r, s) pair produced by OpenSSL

Cyber attack with unrecognizable hooded hacker using virtual reality, digital glitch effect.

I am writing transactions manually and have stumbled across a rather bizarre situation.Continue readingBitcoind does not like ECDSA (r, s) pair produced by OpenSSL