This problem can be solved by involving a third person who knows both Alice and Bob. This person needs to be a ‘trusted entity’; let’s call him Trent. Trent knows Alice, and Trent is known by Bob. If somehow Trent marks Alice’s public key to confirm its authenticity, Bob knows t...
I was able to sign a pdf document with GOST algorithm, but Adobe Reader throws exception while validating the signature, because the GOST algorithm is not supported. How can I validate it in any way? What should I do to add the algorithm to Adobe Reader? Can I make it by means ...
Solved: Hi Friends Please clarify below points as we are planning to use SHA 256 algorithm with digital certificate while signing using SECULIB libraray. 1) Does SAP
1. For example, if two signals s1(t) = 1 and s2(t) = cos(2πt) are sampled once per second, their resulting sample series would both be given by {1, 1, 1, …}. The reason for this undesirable circumstance is that s2(t) is bandlimited to 1 Hz and therefore must be sampled ...
Solved: Dear Expert, I need to apply the digital signature on XML during java mapping on payload level. I have a sample of required format by third part(bank), however I
Kuang, Perepechaenko, and Barbeau recently proposed a novel quantum-safe digital signature algorithm called Multivariate Polynomial Public Key or MPPK/DS. The key construction originated with two univariate polynomials and one base multivariate polynomia
Have you ever heard the aphorism, "Any problem in computer science can be solved with another level of indirection"? Well, as we're about to see, XML DSIG is a prime example of that. The content ofds:SignedInfocan be divided into two parts, information about theSignatureValue, and infor...
CryptVerifySignature ( data ; algorithm ; publicRSAKey ; signature ) Why Use Digital Signatures: An Example Digital signatures are a digital analog to good old-fashioned physical signatures which we’re all familiar with. Digital signatures serve a similar function as physical signatures, but they...
I am considering to instruct the users not to use Adobe programs for signature creation and to use our signing service or any other EU compatible publicly available signature service such as EU DSS, if I do not get this issue solved. It looks like Adobe is...
In the random oracle model, if an existential forgery of the qSIG signature scheme under an adaptive chosen message attack has non-negligible probability of success, then the DLP in J can be solved in polynomial time. Proof This is the standard proof of applying the Fiat–Shamir transform to...