digest

问题 I'm trying to create function that will run private API calls on some sites. All those sites are using authentication by signature of the API call as follows in php: base64_encode( hash_hmac('sha512', $post_data, base64_decode($secret), true) ) Using package digest and RCurl I can easily write as: base64Encode( hmac(key = base64Decode(secret), object = post_data, algo = 'sha512', raw = TRUE) ) I'm fighting whole day with the hmac key parameter input: key = base64Decode(secret) The issue is

问题 How to implement HTTPS with Digest Authentication in C#.Net? as per msdn, credential class has no support for SSL.. so how can we implement authentication? my code works with basic authentication but gives error with digest.. 回答1: You can specify the type of credential when creating a credential in the CredentialCache, which is used for WebClients and WebRequests. So, for example, to populate the CredentialCache to try Digest auth you could use CredentialCache cache = new CredentialCache();

问题 How to implement HTTPS with Digest Authentication in C#.Net? as per msdn, credential class has no support for SSL.. so how can we implement authentication? my code works with basic authentication but gives error with digest.. 回答1: You can specify the type of credential when creating a credential in the CredentialCache, which is used for WebClients and WebRequests. So, for example, to populate the CredentialCache to try Digest auth you could use CredentialCache cache = new CredentialCache();

问题 I am getting different message digests from the linux 'sha512sum' tool and the python hashlib library. Here is what I get on my Ubuntu 8.10: $ echo test | sha512sum 0e3e75234abc68f4378a86b3f4b32a198ba301845b0cd6e50106e874345700cc6663a86c1ea125dc5e92be17c98f9a0f85ca9d5f595db2012f7cc3571945c123 - $ python Python 2.5.2 (r252:60911, Oct 5 2008, 19:24:49) [GCC 4.3.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import hashlib >>> hashlib.sha512("test")

问题 I am currently working on a Java project and I can't get the http digest authentication working. I tried using the Apache website, but it didn't help. I have a site that requires HTTP digest authentication. DefaultHttpClient httpclient = new DefaultHttpClient(); String hostUrl = "http://somewebsite.com"; String postUrl = "http://somewebsite.com/request"; HttpPost httpPost = new HttpPost(postUrl); String username = "hello"; String password = "world"; HttpHost targetHost = new HttpHost(hostUrl)

问题 I'm trying to compute SHA1 of an integer array in the Linux kernel. I have gone through crypto.c / crypto.h and security/integrity/ima/ima_crypto.c but I can't figure out how to init and then update the SHA1 computer. Can someone point me to a tutorial or guide on how to go about doing this? 回答1: There's a pretty good introduction to the linux cryptography api in Documentation/crypto/api-intro.txt. Also check out fs/ecryptfs/crypto.c for a real-life example of how the functions are used. Here

问题 When writing an average new app in 2009, what's the most reasonable digest function to use, in terms of security and performance? (And how can I determine this in the future, as conditions change?) When similar questions were asked previously, answers have included SHA1, SHA2, SHA-256, SHA-512, MD5, bCrypt, and Blowfish. I realize that to a great extent, any one of these could work, if used intelligently, but I'd rather not roll a dice and pick one randomly. Thanks. 回答1: I'd follow NIST/FIPS

问题 i am struggling with the same issue like Markus Dreyer: C# Calculate SHA256 value for SEPA (XML) paymentfile According to the DFÜ Agreement i have to calculate a sha256 hash value: The hash value is created using the entire contained document, including the opening and closing tag. The document is canonicalized according to Canonical XML, version 1.0. (http://www.w3.org/TR/2001/REC-xml-c14n-20010315). In the case of included documents, the canonisation has also to be executed accord-ing to

问题 Given two different messages, A and B (maybe 20-80 characters of text, if size matters at all), what is the probability that the MD5 digest of A is the same as the MD5 digest of B and the SHA1 digest of A is the same as the SHA1 digest of B? That is: (MD5(A) == MD5(B)) && (SHA1(A) == SHA1(B)) Assume no malicious intent, i.e., that the messages are not selected with an aim of finding a clash. I just want to know the odds of this happening naturally. I'm thinking the chances are "astronomically

问题 I have been following the Docker tutorial here, and built a test image on my local OSX machine by committing changes to an existing image and tagging it with three different labels: # docker images REPOSITORY TAG IMAGE ID CREATED SIZE adamatan/sinatra devel fccb6b4d21b4 8 minutes ago 469.5 MB adamatan/sinatra junk fccb6b4d21b4 8 minutes ago 469.5 MB adamatan/sinatra latest fccb6b4d21b4 8 minutes ago 469.5 MB However, none of these images has a digest: # docker images --digests adamatan