LICENSE file. package ecdsa import ( "bytes" "crypto/internal/fips140" "crypto/internal/fips140/hmac" ) // hmacDRBG is an SP 800-90A Rev. 1 HMAC_DRBG. // // It is only intended to be used to generate ECDSA nonces. Since it will be // instantiated ex-novo for each signature, its Generate function will only be // invoked once or twice (only for P-256, with probability 2⁻³²). // // Per Table 2, it has a reseed interval of 2^48 requests, and a maximum request // size of 2^19 bits (2^16 bytes, 64 KiB)....