Bitcoin Public Key Formats

in bitcoin •  8 years ago 

Public Key Formats

Public key is a point (x, y) on a elliptic curve.

Compressed public keys have a prefix of 04.

Uncompressed public keys have a prefix of 02 or 03.

TypePrefixFormat
Uncompressed0404xy
Compressed and y is even0202x
Compressed and y is odd0303x
bitcoin public-key
8 years ago by

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      ·  8 years ago 

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