diffie_hellman 0.1.1

Dart implementation of modular DH groups. Based on PKCS#3.

Dart Diffie-Hellman

Dart implementation of modular DH groups. Based on PKCS#3.

Usage

DhPkcs3Engine dhEngine = DhPkcs3Engine.fromGroup(18);
DhPkcs3Engine otherDhEngine = DhPkcs3Engine.fromGroup(18);

DhKeyPair keyPair = dhEngine.generateKeyPair();
DhKeyPair otherKeyPair = otherDhEngine.generateKeyPair();

print('Public Key: ${keyPair.publicKey}');
print('Private Key: ${keyPair.privateKey}');
print('Other public Key: ${otherKeyPair.publicKey}');
print('Other private Key: ${otherKeyPair.privateKey}');


print('Secret Key: ${dhEngine.computeSecretKey(otherKeyPair.publicKey)}');
print('Other secret Key: ${otherDhEngine.computeSecretKey(keyPair.publicKey)}');

DH Groups

Group ID	Modulus length	Strength range (in bits)
1	768-bit	-
2	1024-bit	-
5	1536-bit	90-120
14	2048-bit	110-160
15	3072-bit	130-210
16	4096-bit	150-240
17	6144-bit	170-270
18	8192-bit	190-310

References

• https://www.teletrust.de/fileadmin/files/oid/oid_pkcs-3v1-4.pdf
• https://www.ietf.org/rfc/rfc3526.txt