verification

问题 Can anyone tell me how to verify the Password-based P12 file using openssl? Logic or sample code will be much helpful. 回答1: You can find a code sample that : - opens a pkcs#12 file with password - extracts the private key and certificates in the openssl source code at : ./demos/pkcs12/pkread.c 来源： https://stackoverflow.com/questions/6750533/how-to-verify-a-p12-certificate-using-openssl

问题 I am working on a language comparison of several languages created with verification in mind (Whiley, Dafny and Frama-C etc.) I was given this example of a function which copied a region of one array to another array with different placement within the destination array. The specification I came up with looks like this in Dafny: method copy( src: array<int>, sStart: nat, dest: array<int>, dStart: nat, len: nat) returns (r: array<int>) // both arrays cannot be null requires dest != null && src

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . The company has a web-based punch card application, but my boss wants to make employees punch in and out using their fingerprint rather than sharable passwords. Is there any free/open source/commercial SDKs that can be used? With a Java or ActiveX based embeddable component? Thanks in advance. 回答1: Most of the

问题 I'm interested in url signing (e.g. http://.../?somearg=value&anotherarg=anothervalue&sig=aSKS9F3KL5xc), but I have a few requirements which have left me without a solution yet. I'll be using either PHP or Python for pages, so I'll need to be able to sign and verify a signature using one of the two. My plan was to use a priv/pub key scheme to sign some data, and be able to verify that the signature is valid, but here's where it gets complicated: The data is not known when the verification is

问题 I have an iPhone app that communicates with a server (both of which I own and wrote the code for). I need to way to determine if a request on my server came from an iPhone (or any mobile device running the app I wrote for that matter). Basically, I only want to allow apps that I wrote to communicate with the server and need a way to verify that. Since I'm writing the apps, I can modify the headers and what not any way I need to. I read up a little on Public Key Encryption, but I don't think

问题 I'm currently working on a timestamp service producing PAdES-4-compliant timestamps. This is working fine with timestamps received from the Swisscom / Swisssign / QuoVadis servers. But whenever I use a timestamp received from my own timestamping authority or Signtrust, Adobe Reader (Version 11.0.06) keeps rejecting my timestamp with the German comment: "Dokument wurde nach dem Unterzeichnen verändert oder beschädigt", which means 'The document was changed or damaged after signature creation'.

问题 I have a list of elements as shown in the code. And I am changing it to Array. Before my application starts, the user will enter some text in a text box. C# Code: IList<IWebElement> namelist = driver2.FindElements(By.TagName("SPAN")); namelist.ToArray(); What I want to do is : to check whether text entered by the user is present in that list. Suppose the user enters "String Text" , then I need selenium to check whether "String Text" is present in this list. 回答1: Just convert your array of

问题 I am new in Dafny and getting some errors that I can not figure it out. in my Dafny program for insertionSort (the code is here), I do not understand why I get an invalid logical expression on While loop over variable i . while (i < |input|) in the same code at the swapping part ( input[j := b]; input[j-1 := a]; ) also I get expected method call, found expression . According to the tutorial input[j:=b] is replacing index j of seq input with the value of b 回答1: The first error is because you

问题 Suppose we have the following C annotated code: #define L 3 int a[L] = {0}; /*@ requires \valid(a+(0..(L - 1))); ensures \forall int j; 0 <= j < L ==> (a[j] == j); */ int main() { int i = 0; /*@ loop assigns i, a[0..(i-1)]; loop invariant inv1: 0 <= i <= L; loop invariant inv2: \forall int k; 0 <= k < i ==> a[k] == k; */ while (i < L) { a[i] = i; i++; } /*@ assert final_progress: \forall int k; 0 < k < L ==> a[k] == a[k-1] + 1; assert final_c: a[2] == a[1] - 1; */ return 0; } Why Alt-Ergo/Z3

问题 I want to develop an application that uses Google as the authentication provider, but I want my app to know if the Google account is using 2-step verification before the account is enrolled in my app. Can't find the required API in Google dev docs. 回答1: This answer here explains how to find out if users have 2-step verification turned on. See API documentation here and parameters here. 来源： https://stackoverflow.com/questions/26314602/determine-whether-google-2-factor-authentication-is-enabled