Helios API/ API Reference/ Namespaces/
Ed25519
The elliptic curve signature algorithm used by Cardano wallets.
Ported from: https://ed25519.cr.yp.to/python/ed25519.py.
ExtendedPoint implementation taken from: https://github.com/paulmillr/noble-ed25519.
Index
Functions
deriveBip32PublicKey
▸ deriveBip32PublicKey(extendedKey): number[]
Similar to Ed25519.derivePublicKey, but doesn't hash the input key.
Parameters
| Name | Type |
|---|---|
extendedKey | number[] |
Returns
number[]
32 byte public key.
derivePublicKey
▸ derivePublicKey(privateKey): number[]
Derive a public key from a private key. The private key can be any number of bytes (it's hashed internally). The returned public key is 32 bytes long.
Parameters
| Name | Type |
|---|---|
privateKey | number[] |
Returns
number[]
32 byte public key.
sign
▸ sign(message, privateKey): number[]
Creates a 64 byte signature.
Parameters
| Name | Type |
|---|---|
message | number[] |
privateKey | number[] |
Returns
number[]
64 byte signature.
signBip32
▸ signBip32(message, extendedKey): number[]
Like Ed25519.sign, but doesn't hash the input key.
Parameters
| Name | Type |
|---|---|
message | number[] |
extendedKey | number[] |
Returns
number[]
64 byte signature.
verify
▸ verify(signature, message, publicKey): boolean
Returns true if the signature is correct.
Parameters
| Name | Type |
|---|---|
signature | number[] |
message | number[] |
publicKey | number[] |
Returns
boolean