219 reputation
15
bio website stackoverflow.com
location United States
age 33
visits member for 1 year, 8 months
seen Apr 4 at 20:18
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Apr
1
accepted How do I unpack the x and y values from the BITSTRING in a DER ECDSA public key?
Mar
29
revised How do I unpack the x and y values from the BITSTRING in a DER ECDSA public key?
make it clearer that I want to know about the public key
Mar
28
revised How do I unpack the x and y values from the BITSTRING in a DER ECDSA public key?
added 134 characters in body
Mar
28
comment How do I unpack the x and y values from the BITSTRING in a DER ECDSA public key?
How about the public key?
Mar
27
asked How do I unpack the x and y values from the BITSTRING in a DER ECDSA public key?
Feb
8
comment Tell me about non-MD5/SHA1 key fingerprints
I recall reading some standard about taking the SHA2 hash of a DER representation of the private key, and a standard name for this kind of fingerprint.
Feb
6
asked Tell me about non-MD5/SHA1 key fingerprints
Oct
15
accepted Should I use md5 for my new application?
Sep
21
awarded  Yearling
Sep
18
comment Is the mod_auth_tkt scheme secure?
With HMAC you can feed key+ipad and key+opad to two instances of the hash function, and then clone the hash function state to sign any number of messages. So you only have to hash the key twice to sign any number of messages.
Sep
18
accepted Is the mod_auth_tkt scheme secure?
Sep
18
asked Is the mod_auth_tkt scheme secure?
Aug
21
asked Is it possible to pick your Ed25519 public key?
Jul
31
asked Are there any systems like SDSI / SPKI that are currently being developed?
Jul
27
comment Should I use md5 for my new application?
It used to be a non-security application. The plan was to re-use the file for signing.
Jul
27
comment Should I use md5 for my new application?
The other day I made the argument that md5 should be replaced with sha-256 in a particular application. I wanted to sign the file digests. I was stunned by the fervent opposition to what I thought was a completely innocuous change. So I am asking for advice about how to better explain the harmlessness of strong hashing to my peers.
Jul
27
asked Should I use md5 for my new application?
Jul
13
comment Signatures: RSA compared to ECDSA
Signing, verification, and key generation are all very fast in the Ed25519 implementation.
Sep
14
revised How can a random salt for a hash function work in practice?
explain brute force attacks
Sep
14
suggested suggested edit on How can a random salt for a hash function work in practice?