signing

Signing and verifying signatures with RSA C#

by

Your problem is at the beginning of the VerifyData method: public static bool VerifyData(string originalMessage, string signedMessage, RSAParameters publicKey) { bool success = false; using (var rsa = new RSACryptoServiceProvider()) { //Don’t do this, do the same as you did in SignData: //byte[] bytesToVerify = Convert.FromBase64String(originalMessage); var encoder = new UTF8Encoding(); byte[] bytesToVerify = encoder.GetBytes(originalMessage); … Read more

Android APK Certificates – what fields are required and what if that info changes?

by

The content of these fields are actually pretty irrelevant and are not generally seen by anyone other than you. You can leave empty fields wherever keytool will allow without consequence later. Once you sign an apk with a keystore and upload it to the Android Market, you cannot sign that same package with another keystore. … Read more

verifying a file signature with openssl dgst

by

openssl dgst -verify foo.pem expects that foo.pem contains the “raw” public key in PEM format. The raw format is an encoding of a SubjectPublicKeyInfo structure, which can be found within a certificate; but openssl dgst cannot process a complete certificate in one go. You must first extract the public key from the certificate: openssl x509 … Read more

Android in app purchase: Signature verification failed

by

This problem is still going on in the current Google billing version. Basically the android.test.purchased is broken; After you buy android.test.purchased the verifyPurchase function in Security.java will always fail and the QueryInventoryFinishedListener will stop at the line if (result.isFailure()); this is because the android.test.purchased item always fails the TextUtils.isEmpty(signature) check in Security.java as it is … Read more

Uploading archive error: “Missing iOS Distribution signing identity for …”

by

The issue is because the Apple WWDRCA expired today (Feb 14, 2016): https://developer.apple.com/support/certificates/expiration/ Open Keychain Access, and in the menu, click View -> Show Expired Certificates. Then, delete the expired Apple Worldwide Developer Relations Certificate Authority from both the login and System Keychains. Install the renewed certificate from Apple by downloading from https://developer.apple.com/certificationauthority/AppleWWDRCA.cer and then … Read more

How to retrieve Key Alias and Key Password for signed APK in android studio(migrated from Eclipse)

by

On the Mac, I found the keystore file path, password, key alias and key password in an earlier log report before I updated Android Studio. I launched the Console utility and scrolled down to ~/Library/Logs -> AndroidStudioBeta ->idea.log.1 (or any old log number) Then I searched for “android.injected.signing.store” and found this from an earlier date: … Read more

How to sign an android apk file

by

The manual is clear enough. Please specify what part you get stuck with after you work through it, I’d suggest: https://developer.android.com/studio/publish/app-signing.html Okay, a small overview without reference or eclipse around, so leave some space for errors, but it works like this Open your project in eclipse Press right-mouse – > tools (android tools?) – > … Read more