The pki tag has no wiki summary.
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1answer
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which asymmetric cipher provide highest performance?
to get highest performance Which asymmetric cipher provide fastest encryption/decryption ? ECC or DH ? what key size is recommended today ?
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2answers
158 views
Crypto USB Devices - where is the PIN/Password stored?
I am currently looking at the security of cryto USB drives for storing x509 certificates. I have one in possession currently. It can be read/written to using the Microsoft Crypto APIs. Anytime one ...
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Determining the algorithm used to generate a digital signature
I have a string "abcd pqrs". This string is digitally signed with an X.509 certificate (with its private key) and it produces a signature.
From the signed string, is it possible to find out what ...
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1answer
91 views
Encrypting with private key in Public Key InfraStructure [closed]
In Public key infra structure, The MD5 of the data is encrypted with private key of sender and this encypted md5 along with the data is again encryted using AES or 3DES algo. here key used to encrypt ...
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3answers
453 views
Is 512-bit RSA still safe for signature generation?
The standard CSP on Windows XP only supports RSA up to 512-bit, which means that it's the maximum key size I can use for authenticity verification of updates. The public key is embedded in the ...
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3answers
218 views
How to avoid a chicken and egg scenario with encrypting passwords?
I am working on application that allows users to upload files containing company data and then share those files with a list of other users that have specific roles within the system.
I want to ...
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1answer
50 views
Design question for a service that signs messages on behalf of a user
I'm working on a messaging service that lets users author messages and have them signed with an RSA key. The key is used for identity purposes only and can be revoked, so compromising the private key ...
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0answers
48 views
Are there any systems like SDSI / SPKI that are currently being developed?
SPKI / SDSI look interesting but appear to have fizzled out and died. Are there any modern competitors?
