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Results tagged with sha
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user 53029
Secure Hash Algorithm is a family of cryptographic hash functions published by NIST. This includes SHA-1, and the SHA-2 and SHA-3 families of functions. SHA-1 is deprecated for all usages.
5
votes
1
answer
3k
views
How will SHA1 deprecation affect SHA1 roots in OS/Browser trust stores.
I understand the SHA1 deprecation policy applies to CA's issuing SHA2 end-entity certs and intermediates starting Jan 2017 but how will this policy affect the actual root certificates in OS/Browser tr …
- 2,777
25
votes
3
answers
13k
views
Is SHA1 weak for SSL?
I noticed that today after I scanned a site on the Qualys SSL Labs site that SSL ciphersuites which use SHA1 are now highlighted as being "Weak". It seems this has just happened; I scan sites pretty r …
- 2,777
1
vote
2
answers
423
views
What does 2^77.1 calls presented in a SHA1 attack mean?
Regarding the SHA 1 deprecation, I found this information here:
http://blogs.technet.com/b/srd/archive/2013/11/12/security-advisory-2880823-recommendation-to-discontinue-use-of-sha-1.aspx
I know that …
- 2,777
12
votes
3
answers
1k
views
How will SHA1 deprecation affect internal CA's?
I am hearing that the SHA1 Deprecation notices from MS/CHROME only apply to certs that are a part of a public trusted root program. This makes one believe that IE will have new logic built in to allow …
- 2,777
2
votes
1
answer
441
views
Why are CA's now signing root certs with SHA2?
I see that CA's are now giving the option of having the root CA cert signed with SHA2. I have been told that the hashing function in a root has no security value, and is irrelevant as far as a collisi …
- 2,777
15
votes
3
answers
2k
views
Trying to understand why signatures in root certs "are not used"?
Taken from here:
Don't worry if the root certificate uses SHA1; signatures on roots are
not used (and Chrome won't warn about them.
Why are the signatures not used?
Are not root certificates v …
- 2,777