network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 4 months |
| seen | 21 hours ago | |
| stats | profile views | 2 |
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May 19 |
comment |
Is this algorithm secure? That's right; provided the password is there in full in the input to HMAC (if HMAC is being used with a standard hash algorithm), adding additional entropy-less data doesn't lower the entropy of the output. |
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May 19 |
answered | Is this algorithm secure? |
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May 18 |
revised |
Is Base64(SHA1(GUID)) still unique like the original GUID? remove length per Paulo's comment |
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May 18 |
comment |
When truncating an AES MAC value by “w” , how do I justify that “w” is still negligible? Thanks Watson, please do edit the answer. |
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May 17 |
answered | Is Base64(SHA1(GUID)) still unique like the original GUID? |
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May 17 |
answered | When truncating an AES MAC value by “w” , how do I justify that “w” is still negligible? |
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May 16 |
revised |
Help me describe/identify this challenge-response protocol/algorithm? defaultdict |
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May 16 |
awarded | Editor |
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May 16 |
revised |
Help me describe/identify this challenge-response protocol/algorithm? generate random vector |
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May 16 |
answered | Help me describe/identify this challenge-response protocol/algorithm? |
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Apr 8 |
comment |
How secure is this perl script to use an AES encryption on files? With no parameter checking, the script isn't robust when called without a passphrase. It will encrypt with the key set to the md5 of the null string with no error returned, which is likely a security issue. |
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Feb 25 |
awarded | Critic |
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Feb 25 |
comment |
Deriving HMAC key and cipher key from passphrase? Never roll your own crypto. |
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Feb 24 |
answered | Bad/Crackable Encryption Example? |
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Feb 16 |
answered | RSA SHA1 signature from public key |
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Jan 25 |
answered | Secure communication between multiple peers on a public channel |
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Jan 23 |
awarded | Supporter |
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Jan 23 |
comment |
Any efficient text-based steganographic schemes? By user friendly I meant easy for a human to decode unaided (just read off the relevant letters), and relatively easy for a human to construct unaided (think up appropriate words to start sentences). These properties disappear if you use the encrypted variant I proposed. |
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Jan 23 |
answered | How to generate a key using any m passwords out of total n? |
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Jan 23 |
awarded | Teacher |
