Knowledge Base
Diffie-Hellman Parameter Publisher

IETF

Well-known Diffie-Hellman (DH) parameters published by IETF.

Parameters

Grade Diffie-Hellman parameter Key size
F
768-bit MODP Group/Oakley Group 1 (RFC 2409, RFC 2539) 768 bits
D
1024-bit MODP Group/Oakley Group 2 (RFC 2409, RFC 2539) 1024 bits
A-
1536-bit MODP Group/Oakley Group 5 (RFC 3526) 1536 bits
A+
2048-bit MODP Group/Oakley Group 14 (RFC 3526) 2048 bits
A+
3072-bit MODP Group/Oakley Group 15 (RFC 3526) 3072 bits
A+
4096-bit MODP Group/Oakley Group 16 (RFC 3526) 4096 bits
D
6144-bit MODP Group/Oakley Group 17 (RFC 3526) 6144 bits
D
8192-bit MODP Group/Oakley Group 18 (RFC 3526) 8192 bits
D
1024-bit MODP Group with 160-bit Prime Order Subgroup (RFC 5114) 1024 bits
C
2048-bit MODP Group with 224-bit Prime Order Subgroup (RFC 5114) 2048 bits
C
2048-bit MODP Group with 256-bit Prime Order Subgroup (RFC 5114) 2048 bits
A+
2048-bit Finite Field Diffie-Hellman group (RFC 7919) 2048 bits
A+
3072-bit Finite Field Diffie-Hellman group (RFC 7919) 3072 bits
A+
4096-bit Finite Field Diffie-Hellman group (RFC 7919) 4096 bits
D
6144-bit Finite Field Diffie-Hellman group (RFC 7919) 6144 bits
D
8192-bit Finite Field Diffie-Hellman group (RFC 7919) 8192 bits
Total records: 16