signature

问题 I am able to verify the signature by using Nodejs crypto.createVerify whereas PHP: openssl_verify always return false. Nodejs: Getting correct result const encryptKey = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; const crypto = require('crypto'); var data = Buffer.from(JSON.stringify(vd), "utf-8"); var password = Buffer.from(encryptKey, "utf-8"); var hashPassword = crypto.createHash('sha256').update(password).digest(); var data ='oubWLpvUHAX5Z/9fmiCx8PGTqDl0

问题 I have a signature within my Google Mail Signature with link in it. When I try to change the color/text it formats my links as links. I understand that, links, when called out may appear as links instead of just text. But I would like to just have them as texts so I may format the colors and weight. 回答1: I haven't found a permanent solution to this and I've been searching for a while. The only temporary workaround I've found is removing/disabling the hyperlink tag from my signature and this

问题 I have a signature within my Google Mail Signature with link in it. When I try to change the color/text it formats my links as links. I understand that, links, when called out may appear as links instead of just text. But I would like to just have them as texts so I may format the colors and weight. 回答1: I haven't found a permanent solution to this and I've been searching for a while. The only temporary workaround I've found is removing/disabling the hyperlink tag from my signature and this

问题 In Auth0 there are 2 algorithms for jwt token signature: RS256 and HS256. RS256 is an asymmetric algorithm which means that there are two keys: one public and one private (secret). Auth0 has the secret key, which is used to generate the signature, and the consumer of the JWT has the public key, which is used to validate the signature. HS256 is a symmetric algorithm which means that there is only one secret key, shared between the two parties. The same key is used both to generate the

问题 The documentation of PackageManager.GET_SIGNATURES says "This constant was deprecated in API level 28. Use GET_SIGNING_CERTIFICATES instead". Unfortunately it was not secure and was easily hacked. How can you use the new "GET_SIGNING_CERTIFICATES" introduced with Android P? 回答1: In API28 or higher you should check for multipleSigners as well. This function will do the job (It's in Kotlin): fun getApplicationSignature(packageName: String = context.packageName): List<String> { val signatureList

问题 The documentation of PackageManager.GET_SIGNATURES says "This constant was deprecated in API level 28. Use GET_SIGNING_CERTIFICATES instead". Unfortunately it was not secure and was easily hacked. How can you use the new "GET_SIGNING_CERTIFICATES" introduced with Android P? 回答1: In API28 or higher you should check for multipleSigners as well. This function will do the job (It's in Kotlin): fun getApplicationSignature(packageName: String = context.packageName): List<String> { val signatureList

问题 I have implemented signature_pad in my flutter project and it works fine. Unfortuantely when I place it inside SingleChildScrollView , the signature was not drew. It scrolled instead signed. It seems like is the GestureDetector but I have no idea how to fix. Can someone give me some clue on this? Thanks. 回答1: Signature Class need to be modified to respond to VerticalDrag , I renamed it to Signature1 now signature area pad should not scroll , you can check the complete code below as it behaves

问题 I have implemented signature_pad in my flutter project and it works fine. Unfortuantely when I place it inside SingleChildScrollView , the signature was not drew. It scrolled instead signed. It seems like is the GestureDetector but I have no idea how to fix. Can someone give me some clue on this? Thanks. 回答1: Signature Class need to be modified to respond to VerticalDrag , I renamed it to Signature1 now signature area pad should not scroll , you can check the complete code below as it behaves

问题 I'm generating a PDF document with signature and I want it to be LTV enabled. For this, I sign the PDF when creating it and then I add the second version containing the DSS with the validation related informations (VRI). As I found in some articles, I need to add the Certificate chain (without the root certificate - Authority) and the Certificate Revocation List (CRL). In my case, both will have 2 elements. After that I add the entry for the VRI which is a SHA-1 hash of the signature content

问题 there! I'm using pdfbox 1.8.11 to do pdf signature, I could create a LTV-enabled signature with DSS dictionary embedded. Now the problem is the certificate verification when there are multiple signatures. According to PDF 2.0 LTV and PAdES LTV specification, it is allowed to add VRI for each signature, so that it is possible verify related revocation data for each specific signature. Any idea how to add VRI dictionary for the signature? As the key for VRI is the a base-16-encoded hash, which