Imports of package ecdsa

PathSynopsis
cryptoPackage crypto collects common cryptographic constants.
crypto/ellipticPackage elliptic implements the standard NIST P-224, P-256, P-384, and P-521 elliptic curves over prime fields.
encoding/asn1Package asn1 implements parsing of DER-encoded ASN.1 data structures, as defined in ITU-T Rec X.690.
ioPackage io provides basic interfaces to I/O primitives.
math/bigPackage big implements arbitrary-precision arithmetic (big numbers).