Answer by user42257 for openssl blowfish key limited to 256 bits?
Above 128 bits in unnecessary. With 128 bits there are 2^128 possible keys, divided by 100 billion tests per second (which would require a formidable GPU farm) and it would take someone 7.8*10^9 times...
View ArticleAnswer by user18163 for openssl blowfish key limited to 256 bits?
I understand the math behind key bit-lengths but recent reesearch is making me start looking at longer keys. Clusters using GPUs to speed computations are already hitting hundreds of billions of keys...
View ArticleAnswer by Thomas Pornin for openssl blowfish key limited to 256 bits?
There is no better security than "cannot break it now, cannot break it in 40 years either". 128-bit keys already offer this level of security. You will not get "more security" by using larger keys. You...
View ArticleAnswer by Brendan Long for openssl blowfish key limited to 256 bits?
For OpenSSL's command-line program (openssl enc), the algorithm chosen also picks the key size (which is why they have separate options for aes-128, aes-192 and aes-256). They just don't have this...
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openssl blowfish key limited to 256 bits?
I get the following error if I give a key that is greater than 64 hex caracters (64*4=256 bits).According to this official document, blowfish is able to support key from 32 to 448 bits.Variable key...
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