Diff for "ECC" - GnuPG wiki

Differences between revisions 3 and 4

Elliptic curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. One of the main benefits in comparison with non-ECC cryptography [..] is the same level of security provided by keys of smaller size. from its Wikipedia entry 2015-11-05

http://arstechnica.com/security/2013/10/a-relatively-easy-to-understand-primer-on-elliptic-curve-cryptography/1/

GnuPG 2.1 supports ECC.

Function	Protocol	Curve	Spec.	Library dependency	Token
Signature	ECDSA	NIST P-256	RFC6637		Gnuk 1.2
Signature	ECDSA	NIST P-384	RFC6637
Signature	ECDSA	NIST P-521	RFC6637
Signature	ECDSA	brainpoolP256r1
Signature	ECDSA	brainpoolP384r1
Signature	ECDSA	brainpoolP512r1
Signature	ECDSA	secp256k1		libgcrypt 1.7	Gnuk 1.2
Signature	EDDSA	Ed25519	RFC4880bis draft		Gnuk 1.2
Encryption	ECDH	NIST P-256	RFC6637		Gnuk 1.2
Encryption	ECDH	NIST P-384	RFC6637
Encryption	ECDH	NIST P-521	RFC6637
Encryption	ECDH	brainpoolP256r1
Encryption	ECDH	brainpoolP384r1
Encryption	ECDH	brainpoolP512r1
Encryption	ECDH	secp256k1		libgcrypt 1.7	Gnuk 1.2
Encryption	ECDH	Curve25519		libgcrypt 1.7	Gnuk 1.2

-  ⇤ ← Revision 3 as of 2016-07-06 00:32:07 → 
  Size: 1932
  Editor: gniibe
  Comment:
+   ← Revision 4 as of 2017-08-12 21:13:36 → ⇥
  Size: 2047
  Editor: Olf
  Comment: Links to RFCs in table
-Deletions are marked like this.
+Additions are marked like this.
 Line 12:
-|= Function |= Protocol |= Curve         |= Spec.   |= Library dependency   |=Token  |
| Signature  | ECDSA     |NIST P-256      | RFC6637 |           |Gnuk 1.2|
| Signature  | ECDSA     |NIST P-384      | RFC6637 |           |        |
| Signature  | ECDSA     |NIST P-521      | RFC6637 |           |        |
| Signature  | ECDSA     |brainpoolP256r1 |         |           |        |
| Signature  | ECDSA     |brainpoolP384r1 |         |           |        |
| Signature  | ECDSA     |brainpoolP512r1 |         |           |        |
| Signature  | ECDSA     |secp256k1       |         |libgcrypt 1.7|Gnuk 1.2|
| Signature  | EDDSA     |Ed25519         | draft RFC4880bis        |           |Gnuk 1.2|
| Encryption | ECDH    	 |NIST P-256      | RFC6637 |           |Gnuk 1.2|
| Encryption | ECDH    	 |NIST P-384      | RFC6637 |           |        |
| Encryption | ECDH    	 |NIST P-521      | RFC6637 |           |        |
| Encryption | ECDH    	 |brainpoolP256r1 |         |           |        |
| Encryption | ECDH    	 |brainpoolP384r1 |         |           |        |
| Encryption | ECDH    	 |brainpoolP512r1 |         |           |        |
| Encryption | ECDH    	 |secp256k1       |         |libgcrypt 1.7|Gnuk 1.2|
| Encryption | ECDH    	 |Curve25519      |         |libgcrypt 1.7|Gnuk 1.2|

https://datatracker.ietf.org/doc/draft-koch-openpgp-rfc4880bis/
+|= Function |= Protocol |= Curve |= Spec. |= Library dependency |=Token |
| Signature | ECDSA | NIST P-256 | [[https://tools.ietf.org/html/rfc6637|RFC6637]] |           |Gnuk 1.2|
| Signature | ECDSA | NIST P-384 | [[https://tools.ietf.org/html/rfc6637|RFC6637]] |           |        |
| Signature | ECDSA | NIST P-521 | [[https://tools.ietf.org/html/rfc6637|RFC6637]] |           |        |
| Signature | ECDSA | brainpoolP256r1 |         |           |        |
| Signature | ECDSA | brainpoolP384r1 |         |           |        |
| Signature | ECDSA | brainpoolP512r1 |         |           |        |
| Signature | ECDSA | secp256k1 |         |libgcrypt 1.7|Gnuk 1.2|
| Signature | EDDSA | Ed25519   | [[https://tools.ietf.org/html/draft-koch-openpgp-rfc4880bis|RFC4880bis draft]] |           |Gnuk 1.2|
| Encryption | ECDH | NIST P-256 | [[https://tools.ietf.org/html/rfc6637|RFC6637]] |           |Gnuk 1.2|
| Encryption | ECDH | NIST P-384 | [[https://tools.ietf.org/html/rfc6637|RFC6637]] |           |        |
| Encryption | ECDH | NIST P-521 | [[https://tools.ietf.org/html/rfc6637|RFC6637]] |           |        |
| Encryption | ECDH | brainpoolP256r1 |         |             |        |
| Encryption | ECDH | brainpoolP384r1 |         |             |        |
| Encryption | ECDH | brainpoolP512r1 |         |             |        |
| Encryption | ECDH | secp256k1       |         |libgcrypt 1.7|Gnuk 1.2|
| Encryption | ECDH | Curve25519      |         |libgcrypt 1.7|Gnuk 1.2|