Class SigningPublicKey

Static ReadonlyUR_TYPE

StaticfromSchnorr

• fromSchnorr(key: SchnorrPublicKey): SigningPublicKey

  Creates a new signing public key from a Schnorr (x-only) public key.

  Parameters

  • key: SchnorrPublicKey

    A SchnorrPublicKey

  Returns SigningPublicKey

  A new signing public key containing the Schnorr key

StaticfromEcdsa

• fromEcdsa(key: ECPublicKey): SigningPublicKey

  Creates a new signing public key from an ECDSA (compressed) public key.

  Parameters

  • key: ECPublicKey

    An ECPublicKey

  Returns SigningPublicKey

  A new signing public key containing the ECDSA key

StaticfromEd25519

• fromEd25519(key: Ed25519PublicKey): SigningPublicKey

  Creates a new signing public key from an Ed25519 public key.

  Parameters

  • key: Ed25519PublicKey

    An Ed25519 public key

  Returns SigningPublicKey

  A new signing public key containing the Ed25519 key

StaticfromSr25519

• fromSr25519(key: Sr25519PublicKey): SigningPublicKey

  Creates a new signing public key from an Sr25519 public key.

  Parameters

  • key: Sr25519PublicKey

    An Sr25519 public key

  Returns SigningPublicKey

  A new signing public key containing the Sr25519 key

StaticfromMldsa

• fromMldsa(key: MLDSAPublicKey): SigningPublicKey

  Creates a new signing public key from an MLDSAPublicKey.

  Parameters

  • key: MLDSAPublicKey

    An MLDSAPublicKey

  Returns SigningPublicKey

  A new signing public key containing the MLDSA key

scheme

• scheme(): SignatureScheme

  Returns the signature scheme of this key.

  Returns SignatureScheme

keyType

• keyType(): string

  Returns a human-readable string identifying the key type.

  Returns string

  A string like "Ed25519", "Schnorr", "ECDSA", "Sr25519", "MLDSA-44", etc.

toSchnorr

• toSchnorr(): SchnorrPublicKey | null

  Returns the underlying Schnorr public key if this is a Schnorr key.

  Returns SchnorrPublicKey | null

  The SchnorrPublicKey if this is a Schnorr key, null otherwise

toEcdsa

• toEcdsa(): ECPublicKey | null

  Returns the underlying ECDSA public key if this is an ECDSA key.

  Returns ECPublicKey | null

  The ECPublicKey if this is an ECDSA key, null otherwise

toEd25519

• toEd25519(): Ed25519PublicKey | null

  Returns the underlying Ed25519 public key if this is an Ed25519 key.

  Returns Ed25519PublicKey | null

  The Ed25519 public key if this is an Ed25519 key, null otherwise

toSr25519

• toSr25519(): Sr25519PublicKey | null

  Returns the underlying Sr25519 public key if this is an Sr25519 key.

  Returns Sr25519PublicKey | null

  The Sr25519 public key if this is an Sr25519 key, null otherwise

isSchnorr

• isSchnorr(): boolean

  Checks if this is a Schnorr signing key.

  Returns boolean

isEcdsa

• isEcdsa(): boolean

  Checks if this is an ECDSA signing key.

  Returns boolean

isEd25519

• isEd25519(): boolean

  Checks if this is an Ed25519 signing key.

  Returns boolean

isSr25519

• isSr25519(): boolean

  Checks if this is an Sr25519 signing key.

  Returns boolean

toMldsa

• toMldsa(): MLDSAPublicKey | null

  Returns the underlying MLDSA public key if this is an MLDSA key.

  Returns MLDSAPublicKey | null

  The MLDSAPublicKey if this is an MLDSA key, null otherwise

isMldsa

• isMldsa(): boolean

  Checks if this is an MLDSA signing key.

  Returns boolean

equals

• equals(other: SigningPublicKey): boolean

  Compare with another SigningPublicKey.

  Parameters

  • other: SigningPublicKey

  Returns boolean

toString

• toString(): string

  Get string representation.

  Returns string

reference

• reference(): Reference

  Returns a unique reference to this SigningPublicKey instance.

  The reference is derived from the SHA-256 hash of the tagged CBOR representation, providing a unique, content-addressable identifier.

  Returns Reference

verify

• verify(signature: Signature, message: Uint8Array): boolean

  Verifies a signature against a message.

  Parameters

  • signature: Signature

    The signature to verify

  • message: Uint8Array

    The message that was allegedly signed

  Returns boolean

  true if the signature is valid, false otherwise

cborTags

• cborTags(): Tag[]

  Returns the CBOR tags associated with SigningPublicKey.

  Returns Tag[]

untaggedCbor

• untaggedCbor(): Cbor

  Returns the untagged CBOR encoding.

  Format (matching Rust bc-components):

  • Schnorr: h'<32-byte-x-only-public-key>' (bare byte string)
  • ECDSA: [1, h'<33-byte-compressed-public-key>']
  • Ed25519: [2, h'<32-byte-public-key>']
  • Sr25519: [3, h'<32-byte-public-key>']

  Returns Cbor

taggedCbor

• taggedCbor(): Cbor

  Returns the tagged CBOR encoding.

  Returns Cbor

taggedCborData

• taggedCborData(): Uint8Array

  Returns the tagged value in CBOR binary representation.

  Returns Uint8Array

fromUntaggedCbor

• fromUntaggedCbor(cborValue: Cbor): SigningPublicKey

  Creates a SigningPublicKey by decoding it from untagged CBOR.

  Format (matching Rust bc-components):

  • h'<32-byte-key>' (bare byte string) for Schnorr
  • [1, h'<33-byte-key>'] for ECDSA
  • [2, h'<32-byte-key>'] for Ed25519
  • [3, h'<32-byte-key>'] for Sr25519

  Parameters

  • cborValue: Cbor

  Returns SigningPublicKey

fromTaggedCbor

• fromTaggedCbor(cborValue: Cbor): SigningPublicKey

  Creates a SigningPublicKey by decoding it from tagged CBOR.

  Parameters

  • cborValue: Cbor

  Returns SigningPublicKey

StaticfromTaggedCbor

• fromTaggedCbor(cborValue: Cbor): SigningPublicKey

  Static method to decode from tagged CBOR.

  Parameters

  • cborValue: Cbor

  Returns SigningPublicKey

StaticfromTaggedCborData

• fromTaggedCborData(data: Uint8Array): SigningPublicKey

  Static method to decode from tagged CBOR binary data.

  Parameters

  • data: Uint8Array

  Returns SigningPublicKey

StaticfromUntaggedCborData

• fromUntaggedCborData(data: Uint8Array): SigningPublicKey

  Static method to decode from untagged CBOR binary data.

  Parameters

  • data: Uint8Array

  Returns SigningPublicKey

ur

• ur(): UR

  Returns the UR representation of the signing public key.

  Returns UR

urString

• urString(): string

  Returns the UR string representation of the signing public key.

  Returns string

StaticfromUR

• fromUR(ur: UR): SigningPublicKey

  Creates a SigningPublicKey from a UR.

  Parameters

  • ur: UR

  Returns SigningPublicKey

StaticfromURString

• fromURString(urString: string): SigningPublicKey

  Creates a SigningPublicKey from a UR string.

  Parameters

  • urString: string

  Returns SigningPublicKey

StaticfromUrString

• fromUrString(urString: string): SigningPublicKey

  Alias for fromURString for Rust API compatibility.

  Parameters

  • urString: string

  Returns SigningPublicKey

toSsh

• toSsh(comment?: string): string

  Converts the public key to SSH format. Currently only supports Ed25519 keys.

  Parameters

  • Optionalcomment: string

  Returns string