frost/secp256k1-kmp
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Use frost in Secp256k1 native logic

Browse Source
This commit is contained in:
kngako
2024-08-04 23:53:28 +02:00
parent 4826863644
commit 3c01a2aad4
12 changed files with 774 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
jni/src/main/java/fr/acinq/secp256k1/Secp256k1CFunctions.java
View File

@@ -106,4 +106,29 @@ public class Secp256k1CFunctions {
public static native int secp256k1_musig_partial_sig_verify(long ctx, byte[] psig, byte[] pubnonce, byte[] pubkey, byte[] keyagg_cache, byte[] session);
public static native byte[] secp256k1_musig_partial_sig_agg(long ctx, byte[] session, byte[][] psigs);
public static native byte[][] secp256k1_frost_shares_gen(long ctx, byte[][] vss_commitment, byte[] pok64, byte[] seed32, int total_signers, byte[][] ids33);
public static native byte[][] secp256k1_frost_share_agg(long ctx, byte[][][] vss_commitments, byte[] id33);
public static native int secp256k1_frost_share_verify(long ctx, byte[] id33, byte[] share, byte[][] vss_commitment);
public static native byte[] secp256k1_frost_compute_pubshare(long ctx, byte[] id33, byte[][][] vss_commitments);
public static native byte[] secp256k1_frost_pubkey_tweak(long ctx, byte[] public_key);
public static native byte[] secp256k1_frost_pubkey_ec_tweak_add(long ctx, byte[] tweakCache, byte[] tweak32);
public static native byte[][] secp256k1_frost_pubkey_xonly_tweak_add(long ctx, byte[] tweakCache, byte[] tweak32);
public static native byte[][] secp256k1_frost_nonce_gen(long ctx, byte[] sessionId32, byte[] share, byte[] msg32, byte[] publicKey, byte[] extraInput32);
public static native byte[] secp256k1_frost_nonce_process(long ctx, byte[][] pubnonces, byte[] msg32, byte[] publicKey, byte[] id33, byte[][] ids33, byte[] tweakCache, byte[] adaptor);
public static native byte[] secp256k1_frost_partial_sign(long ctx, byte[] secnonce, byte[] share, byte[] session, byte[] tweak_cache);
public static native int secp256k1_frost_partial_sig_verify(long ctx, byte[] partialSig, byte[] publicNonce, byte[] publicShare, byte[] session, byte[] tweakCache);
public static native byte[] secp256k1_frost_partial_sig_aggregate(long ctx, byte[] session, byte[][] partialSignatures);
}

169
jni/src/main/kotlin/fr/acinq/secp256k1/NativeSecp256k1.kt
View File

@@ -129,6 +129,175 @@ public object NativeSecp256k1 : Secp256k1 {
return Secp256k1CFunctions.secp256k1_musig_partial_sig_agg(Secp256k1Context.getContext(), session, psigs)
}
override fun frostSharesGen(
vssCommitment: Array<ByteArray>,
pok64: ByteArray,
seed32: ByteArray,
totalSigners: Int,
ids33: Array<ByteArray>
): Array<ByteArray> {
return Secp256k1CFunctions.secp256k1_frost_shares_gen(
Secp256k1Context.getContext(),
vssCommitment,
pok64,
seed32,
totalSigners,
ids33
)
}
override fun frostShareAggregate(
totalShares: Array<ByteArray>,
vssCommitments: Array<Array<ByteArray>>,
id33: ByteArray
): Pair<ByteArray, ByteArray> {
val result = Secp256k1CFunctions.secp256k1_frost_share_agg(
Secp256k1Context.getContext(),
vssCommitments,
id33
)
return Pair(
result[0], // agg_share
result[1] // agg_pk
)
}
override fun frostShareVerify(
threshold: Int,
id33: ByteArray,
share: ByteArray,
vssCommitment: Array<ByteArray>
): Int {
return Secp256k1CFunctions.secp256k1_frost_share_verify(
Secp256k1Context.getContext(),
id33,
share,
vssCommitment
)
}
override fun frostComputePublicShare(
id33: ByteArray,
vssCommitments: Array<Array<ByteArray>>
): ByteArray {
return Secp256k1CFunctions.secp256k1_frost_compute_pubshare(
Secp256k1Context.getContext(),
id33,
vssCommitments
)
}
override fun frostPublicKeyTweak(pk: ByteArray): ByteArray {
return Secp256k1CFunctions.secp256k1_frost_pubkey_tweak(
Secp256k1Context.getContext(),
pk
)
}
override fun frostPublicKeyEcTweakAdd(tweakCache: ByteArray, tweak32: ByteArray): ByteArray {
return Secp256k1CFunctions.secp256k1_frost_pubkey_ec_tweak_add(
Secp256k1Context.getContext(),
tweakCache,
tweak32
)
}
override fun frostPublicKeyXonlyTweakAdd(tweakCache: ByteArray, tweak32: ByteArray): Pair<ByteArray, ByteArray> {
val result = Secp256k1CFunctions.secp256k1_frost_pubkey_xonly_tweak_add(
Secp256k1Context.getContext(),
tweakCache,
tweak32
)
return Pair(
result[0], // output_pubkey
result[1] // tweak_cache
)
}
override fun frostNonceGen(
sessionId32: ByteArray,
share: ByteArray,
msg32: ByteArray,
publicKey: ByteArray,
extraInput32: ByteArray?
): Pair<ByteArray, ByteArray> {
val result = Secp256k1CFunctions.secp256k1_frost_nonce_gen(
Secp256k1Context.getContext(),
sessionId32,
share,
msg32,
publicKey,
extraInput32
)
return Pair(
result[0], // secnonce
result[1] // pubnonce
)
}
override fun frostNonceProcess(
publicNonces: Array<ByteArray>,
msg32: ByteArray,
publicKey: ByteArray,
id33: ByteArray,
ids33: Array<ByteArray>,
tweakCache: ByteArray,
adaptor: ByteArray?
): ByteArray {
return Secp256k1CFunctions.secp256k1_frost_nonce_process(
Secp256k1Context.getContext(),
publicNonces,
msg32,
publicKey,
id33,
ids33,
tweakCache,
adaptor
)
}
override fun frostPartialSign(
secnonce: ByteArray,
share: ByteArray,
session: ByteArray,
tweakCache: ByteArray
): ByteArray {
return Secp256k1CFunctions.secp256k1_frost_partial_sign(
Secp256k1Context.getContext(),
secnonce,
share,
session,
tweakCache
)
}
override fun frostPartialSignatureVerify(
partialSig: ByteArray,
publicNonce: ByteArray,
publicShare: ByteArray,
session: ByteArray,
tweakCache: ByteArray
): Int {
return Secp256k1CFunctions.secp256k1_frost_partial_sig_verify(
Secp256k1Context.getContext(),
partialSig,
publicNonce,
publicShare,
session,
tweakCache
)
}
override fun frostPartialSignatureAggregate(session: ByteArray, partialSignatures: Array<ByteArray>): ByteArray {
return Secp256k1CFunctions.secp256k1_frost_partial_sig_aggregate(
Secp256k1Context.getContext(),
session,
partialSignatures
)
}
override fun cleanup() {
return Secp256k1CFunctions.secp256k1_context_destroy(Secp256k1Context.getContext())
}