CPubKey

Synopsis

Declared in <pubkey.h>

class CPubKey;

Name	Description
`CPubKey` [constructor]	Constructors
`Decompress`	Turn this public key into an uncompressed public key.
`Derive`	Derive BIP32 child pubkey.
`GetHash`	Get the 256-bit hash of this public key.
`GetID`	Get the KeyID of this public key (hash of its serialization)
`IsCompressed`	Check whether this is a compressed public key.
`IsFullyValid`	fully validate whether this is a valid public key (more expensive than IsValid())
`IsValid`	Check syntactic correctness.
`IsValidNonHybrid`	Check if a public key is a syntactically valid compressed or uncompressed key.
`RecoverCompact`	Recover a public key from a compact signature.
`Serialize`	Implement serialization, as if this was a byte vector.
`Set`	Initialize a public key using begin/end iterators to byte data.
`Unserialize`	Deserialize the public key from a stream, as if it were a byte vector.
`Verify`	Verify a DER signature (~72 bytes). If this public key is not fully valid, the return value will be false.
`begin`	Iterator to the first byte of the serialized public key.
`data`	Pointer to the first byte of the serialized public key.
`end`	Iterator past the last byte of the serialized public key.
`operator[]`	Access the byte at the given position.
`size`	Number of bytes in the serialized public key.

Name	Description
`CheckLowS`	Check whether a signature is normalized (lower-S).
`ValidSize`	Check whether a byte vector has a valid public key length for its header byte.

Name	Description
`COMPACT_SIGNATURE_SIZE`	Size in bytes of a compact (recoverable) ECDSA signature.
`COMPRESSED_SIZE`	Size in bytes of a compressed public key.
`SIGNATURE_SIZE`	Maximum size in bytes of a DER-encoded ECDSA signature.
`SIZE`	secp256k1:

Name	Description
`operator>`	Order two public keys lexicographically by their serialized bytes.
`operator<`	Order two public keys lexicographically by their serialized bytes.
`operator==`	Comparator implementation.

Name	Description
`CreateMuSig2SyntheticXpub`	Construct the BIP 328 synthetic xpub for a pubkey
`GetScriptForRawPubKey`	Generate a P2PK script for the given pubkey.
`HexToPubKey`	Parse a hex-encoded public key, throwing an RPC error if it is invalid.
`MuSig2AggregatePubkeys`	Compute the full aggregate pubkey from the given participant pubkeys in their current order. Outputs the secp256k1_musig_keyagg_cache and validates that the computed aggregate pubkey matches an expected aggregate pubkey. This is necessary for most MuSig2 operations.
`MuSig2AggregatePubkeys`	Compute the full aggregate pubkey from the given participant pubkeys in their current order.
`MuSig2SessionID`	Computes an arbitrary unique session ID to identify ongoing signing sessions. It is the SHA256 of the signing (aggregate) pubkey, the participant pubkey, the sighash, and the pubnonce