KeysManager

Source

secp256k1 key generation and management utilities.

Interface KeyPair:

Field	Type	Description
privateKey	Uint8Array	Private key (32 bytes).
publicKey	Uint8Array	Derived public key.

generateRandomKey

generateRandomKey(length?: number): Uint8Array

Generates cryptographically secure random bytes.

Parameters:

Name	Type	Required	Description
length	number	No	Number of bytes. Defaults to 32. Must be a positive integer.

Returns: Uint8Array — random bytes.

Throws: Error("PrivateKeyLength must be a positive integer") — if length is not a positive integer.

generateKeyPair

generateKeyPair(keyLength?: number): KeyPair

Generates a random secp256k1 key pair.

Parameters:

Name	Type	Required	Description
keyLength	number	No	Private key length in bytes. Defaults to 32.

Returns: KeyPair — { privateKey, publicKey }.

Throws: Error("PrivateKeyLength must be a positive integer") — if keyLength is invalid.

getKeyPairFromPrivateKey

getKeyPairFromPrivateKey(privateKey: Uint8Array): KeyPair

Derives a KeyPair from an existing private key.

Parameters:

Name	Type	Required	Description
privateKey	Uint8Array	Yes	secp256k1 private key (32 bytes).

Returns: KeyPair — { privateKey, publicKey }.

getPublicKeyFromPrivateKey

getPublicKeyFromPrivateKey(privateKey: Uint8Array): Uint8Array

Derives the public key from a private key.

Parameters:

Name	Type	Required	Description
privateKey	Uint8Array	Yes	secp256k1 private key (32 bytes).

Returns: Uint8Array — compressed public key.

convertKeyToHex

convertKeyToHex(key: Uint8Array): string

Converts a binary key to a lowercase hex string.

Parameters:

Name	Type	Required	Description
key	Uint8Array	Yes	Key bytes to encode.

Returns: string — hex-encoded key.

deriveKeyFromMnemonic

deriveKeyFromMnemonic(mnemonicWords: string[], options?: Bip44PathOptions): Promise<Uint8Array>

Convenience wrapper over KeyDerivationService.deriveKeyFromMnemonic.

Parameters:

Name	Type	Required	Description
mnemonicWords	string[]	Yes	Mnemonic word array.
options	Bip44PathOptions	No	BIP-44 path options.

Returns: Promise<Uint8Array> — derived private key (32 bytes).