Difference between revisions of "Signing"

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(Solutions)
(Solutions)
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| secp521r1|| P-521||  || default ||random curve 521 bit SEC - not worth the extra work
 
| secp521r1|| P-521||  || default ||random curve 521 bit SEC - not worth the extra work
 
|-
 
|-
| || || ||Ed25519Signature2018
+
| || ||Ed25519Signature2018 ||
 
|-
 
|-
 
| sect283r1||  || ||  ||Weierstrass curve 283-bit  
 
| sect283r1||  || ||  ||Weierstrass curve 283-bit  

Revision as of 14:01, 30 July 2022

Full Title or Meme

A signature on a digital document is designed to show that the document has not be altered and the identity of the key used to make the signature.

Solutions

  • RSA signing with 3072 bit keys is good enough for TOP SECRET om 2015-08-19, but might not be included in post-quantum cryptography suites.
  • See the wiki page Quantum Computing Threat for current status on post-quantum Cryptography.
  • Curves Supported by OpenSSL can be discovered by keying (there will typically be many more that shown here)
openssl ecparam -list_curves


IETF name NIST name W3C name SSL Description
secp256k1 default Koblitz curve 256 bit SEC
secp256r1 P-256 EcdsaSecp256k1Signature2019 default random curve 256 bit SEC SUITE B
secp384r1 P-384 EcdsaSecp256r1Signature2019 default random curve 386 bit SEC SUITE B -OK for TOP SECRET
secp521r1 P-521 default random curve 521 bit SEC - not worth the extra work
Ed25519Signature2018
sect283r1 Weierstrass curve 283-bit
brainpoolP256r1 default
brainpoolP384r1 default
brainpoolP521r1 default
brainpoolP256t1

References