privkey_to_pubkey

Compute a public key from a 32-byte private key.

The optional boolean flag compressed determines whether a compressed (33-byte), or uncompressed (65-byte) public key, is returned. Defaults to false (uncompressed) if not provided.

Parameters

• privkey — the 32-byte private key
• compressed — whether or not the public should be compressed; defaults to false (uncompressed)

Returns

a 65-byte public key in uncompressed mode, or a 33-byte public key in compressed mode

Throws

• exception — if privkey is not 32 bytes

Since

0.10.6