Added _sign_ js implementation
This commit is contained in:
Ugljesa Jovanovic
parent
37a5cdb2d0
commit
a24fa34296
@ -157,6 +157,25 @@ interface JsSodiumInterface {
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// ---- Box end ----
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// ---- Sign start ----
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fun crypto_sign(message: Uint8Array, secretKey: Uint8Array) : Uint8Array
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fun crypto_sign_detached(message: Uint8Array, secretKey: Uint8Array) : Uint8Array
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fun crypto_sign_ed25519_pk_to_curve25519(ed25519PublicKey: Uint8Array) : Uint8Array
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fun crypto_sign_ed25519_sk_to_curve25519(ed25519SecretKey: Uint8Array) : Uint8Array
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fun crypto_sign_ed25519_sk_to_pk(ed25519SecretKey: Uint8Array) : Uint8Array
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fun crypto_sign_ed25519_sk_to_seed(ed25519SecretKey: Uint8Array) : Uint8Array
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fun crypto_sign_final_create(state: dynamic, secretKey: Uint8Array) : Uint8Array
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fun crypto_sign_final_verify(state: dynamic, signature: Uint8Array, publicKey: Uint8Array) : Boolean
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fun crypto_sign_init() : dynamic
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fun crypto_sign_keypair() : dynamic
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fun crypto_sign_open(signedMessage: Uint8Array, publicKey: Uint8Array) : Uint8Array
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fun crypto_sign_seed_keypair(seed: Uint8Array) : dynamic
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fun crypto_sign_update(state: dynamic, message: Uint8Array)
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fun crypto_sign_verify_detached(signature: Uint8Array, message: Uint8Array, publicKey: Uint8Array) : Boolean
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// ---- Sign end
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//util
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fun memzero(array: Uint8Array)
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@ -0,0 +1,161 @@
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package com.ionspin.kotlin.crypto.signature
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import com.ionspin.kotlin.crypto.getSodium
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import ext.libsodium.com.ionspin.kotlin.crypto.toUByteArray
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import ext.libsodium.com.ionspin.kotlin.crypto.toUInt8Array
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import org.khronos.webgl.Uint8Array
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actual typealias SignatureState = Any
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actual object Signature {
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actual fun init(): SignatureState {
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return getSodium().crypto_sign_init()
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}
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actual fun update(state: SignatureState, data: UByteArray) {
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getSodium().crypto_sign_update(state, data.toUInt8Array())
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}
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actual fun finalCreate(
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state: SignatureState,
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secretKey: UByteArray
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): UByteArray {
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return getSodium().crypto_sign_final_create(
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state,
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secretKey.toUInt8Array()
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).toUByteArray()
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}
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actual fun finalVerify(
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state: SignatureState,
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signature: UByteArray,
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publicKey: UByteArray
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) {
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val verificationResult = getSodium().crypto_sign_final_verify(
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state,
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signature.toUInt8Array(),
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publicKey.toUInt8Array()
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)
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if (verificationResult == false) {
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throw InvalidSignatureException()
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}
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}
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/**
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* The crypto_sign_keypair() function randomly generates a secret key and a corresponding public key.
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* The public key is put into pk (crypto_sign_PUBLICKEYBYTES bytes) and the secret key into sk (crypto_sign_SECRETKEYBYTES bytes).
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*/
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actual fun keypair(): SignatureKeyPair {
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val keypair = getSodium().crypto_sign_keypair()
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return SignatureKeyPair(
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(keypair.publicKey as Uint8Array).toUByteArray(),
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(keypair.privateKey as Uint8Array).toUByteArray()
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)
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}
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/**
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* The crypto_sign_keypair() function randomly generates a secret key and a corresponding public key.
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* The public key is put into pk (crypto_sign_PUBLICKEYBYTES bytes) and the secret key into sk (crypto_sign_SECRETKEYBYTES bytes).
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* Using crypto_sign_seed_keypair(), the key pair can also be deterministically derived from a single key seed (crypto_sign_SEEDBYTES bytes).
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*/
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actual fun seedKeypair(seed: UByteArray): SignatureKeyPair {
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val keypair = getSodium().crypto_sign_seed_keypair(seed.toUInt8Array())
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return SignatureKeyPair(
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(keypair.publicKey as Uint8Array).toUByteArray(),
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(keypair.privateKey as Uint8Array).toUByteArray()
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)
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}
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/**
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* The crypto_sign() function prepends a signature to a message m whose length is mlen bytes, using the secret key sk.
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* The signed message, which includes the signature + a plain copy of the message, is put into sm, and is crypto_sign_BYTES + mlen bytes long.
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*/
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actual fun sign(message: UByteArray, secretKey: UByteArray): UByteArray {
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return getSodium().crypto_sign(
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message.toUInt8Array(),
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secretKey.toUInt8Array()
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).toUByteArray()
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}
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/**
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* The crypto_sign_open() function checks that the signed message sm whose length is smlen bytes has a valid signature for the public key pk.
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* If the signature is doesn't appear to be valid, the function throws an exception
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*/
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actual fun open(signedMessage: UByteArray, publicKey: UByteArray): UByteArray {
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try {
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return getSodium().crypto_sign_open(
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signedMessage.toUInt8Array(),
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publicKey.toUInt8Array()
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).toUByteArray()
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} catch (error : Throwable) {
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throw InvalidSignatureException()
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}
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}
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/**
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* In detached mode, the signature is stored without attaching a copy of the original message to it.
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* The crypto_sign_detached() function signs the message m whose length is mlen bytes, using the secret key sk,
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* and puts the signature into sig, which can be up to crypto_sign_BYTES bytes long.
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*/
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actual fun detached(message: UByteArray, secretKey: UByteArray): UByteArray {
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return getSodium().crypto_sign_detached(
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message.toUInt8Array(),
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secretKey.toUInt8Array()
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).toUByteArray()
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}
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/**
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* The crypto_sign_verify_detached() function verifies that sig is a valid signature for the message m whose length
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* is mlen bytes, using the signer's public key pk.
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*/
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actual fun verifyDetached(signature: UByteArray, message: UByteArray, publicKey: UByteArray) {
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val verificationResult = getSodium().crypto_sign_verify_detached(
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signature.toUInt8Array(),
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message.toUInt8Array(),
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publicKey.toUInt8Array()
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)
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if (verificationResult == false) {
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throw InvalidSignatureException()
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}
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}
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/**
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* The crypto_sign_ed25519_pk_to_curve25519() function converts an Ed25519 public key ed25519_pk to an X25519 public key and stores it into x25519_pk.
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*/
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actual fun ed25519PkToCurve25519(ed25519PublicKey: UByteArray): UByteArray {
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return getSodium().crypto_sign_ed25519_pk_to_curve25519(
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ed25519PublicKey.toUInt8Array()
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).toUByteArray()
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}
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/**
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* The crypto_sign_ed25519_sk_to_curve25519() function converts an Ed25519 secret key ed25519_sk to an X25519 secret key and stores it into x25519_sk.
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*/
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actual fun ed25519SkToCurve25519(ed25519SecretKey: UByteArray): UByteArray {
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return getSodium().crypto_sign_ed25519_sk_to_curve25519(
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ed25519SecretKey.toUInt8Array()
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).toUByteArray()
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}
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/**
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* The secret key actually includes the seed (either a random seed or the one given to crypto_sign_seed_keypair()) as well as the public key.
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* While the public key can always be derived from the seed, the precomputation saves a significant amount of CPU cycles when signing.
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*/
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actual fun ed25519SkToSeed(secretKey: UByteArray): UByteArray {
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return getSodium().crypto_sign_ed25519_sk_to_seed(
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secretKey.toUInt8Array()
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).toUByteArray()
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}
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/**
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* The secret key actually includes the seed (either a random seed or the one given to crypto_sign_seed_keypair()) as well as the public key.
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* While the public key can always be derived from the seed, the precomputation saves a significant amount of CPU cycles when signing.
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*/
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actual fun ed25519SkToPk(secretKey: UByteArray): UByteArray {
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return getSodium().crypto_sign_ed25519_sk_to_pk(
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secretKey.toUInt8Array()
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).toUByteArray()
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}
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}
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