Reputation
5,701
Next tag badge:
64/100 score
17/20 answers
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1 11 33
Newest
 Custodian
Impact
~109k people reached

Feb
17
reviewed Close Hardness assumptions on composite order bilinear groups
Feb
16
comment ECC considered secure in OpenSSL?
The term "safe curve" seems to be used by Bernstein for curves that meet certain criteria, selected to make it easy to ensure that simple implementations are secure implementations. This doesn't imply that "non-simple" implementations using other curves are not secure. Hence, the information provided on the page is insufficient to infer anything about the security of OpenSSL, although it does raise some flags.
Feb
8
awarded  Yearling
Feb
3
awarded  Enlightened
Feb
3
awarded  Nice Answer
Jan
12
awarded  Custodian
Jan
12
reviewed Leave Closed Is there a client-side program to cryptography a HTML page and decode if correct password is writen?
Jan
12
awarded  Custodian
Jan
12
reviewed No Action Needed P = NP and current cryptographic systems
Jan
12
reviewed Close Why are there no MACs inspired by block cipher modes other than CBC and CFB?
Jan
12
reviewed Close How many bits of entropy would I get from 300 coin tosses?
Jan
12
reviewed Close Luby-Rackoff on Feistel ciphers
Jan
12
reviewed Leave Open private keys for multiple devices
Jan
11
reviewed Close Camellia or AES - which should I use?
Jan
7
comment Do I have to transfer the private key to digitally sign a remote document?
If anything is preventing you from transmitting the unsigned pdf back to the client for signing, I am afraid the problem is with your requirements. You will either need some basic pdf parser client side, or you will have to let the server sign the document using a certificate that is not issued for the client. You can't have it both ways.
Jan
5
awarded  Taxonomist
Dec
30
comment Do I have to transfer the private key to digitally sign a remote document?
Transfer the preliminary pdf to the client, let the client sign it and upload it back to the server. Alternatively, let the server sign it with a key corresponding to a certificate that belongs to the service rather than the user.
Dec
29
revised Do I have to transfer the private key to digitally sign a remote document?
deleted 1 character in body
Dec
29
answered Do I have to transfer the private key to digitally sign a remote document?
Dec
29
comment Do I have to transfer the private key to digitally sign a remote document?
What exactly does "DSC" mean in this context?