Category "encryption"

Flutter - How to decrypt a RSA private key encrypted string if we have RSA public key with us?

Flutter app receives public key in the form of contents of public.pem file which would be a string like "-----BEGIN PUBLIC KEY----- MIICqq7DBi9sBXZfDYJC+G57JYUC

Is there any difference, if I init AES cipher, with and without IvParameterSpec

I was wondering, is there any difference, if I init AES cipher, with and without IvParameterSpec? With IvParameterSpec SecretKeySpec skeySpec = new SecretKeyS

Create compatible Java "RSA" signature using a PKCS#8 encoded private key

I have pkcs8_rsa_private_key file which generate by openssl from a rsa_private_key.pem file. I need make a signature by the private key in python, make the same

Getting Started with crypto++ decryption with AES

I'm trying to learn a bit about cryptography and am trying to use AES decryption with the crypto++ library in c++. I have a ciphertext string and a key string.

file is encrypted or is not a database: , while compiling: select count(*) from sqlite_master;

I have an app that has been in production for years. It ships with the standard Sqlite DB. The lastest version of the app has SqlCipher 3.5.6 library integrated

How to convert hexadecimal string to an array of UInt8 bytes in Swift?

I have the following code: var encryptedByteArray: Array<UInt8>? do { let aes = try AES(key: "passwordpassword", iv: "drowssapdrowssap") encrypt

Extract metadata info and Validate digital signature from PDF file using Python

Im trying to validate a PDF which is digitaly signed, and to extract the signers name. Is there any library for doing this job in python? So far I've just come

Invalid argument(s): Input buffer too short AND Invalid or corrupted pad block

I am trying to encrypt and decrypt chat messages for my app using this code String decrypt(String encrypted, {String key, String iv}) { final key = Key.fromUt

Difference result by using sign and verify for signature

I tried to use private key to sign the message digest to generate the signature, and then use public key to verify the signature to get message digest. I want t

How to make html file encrypted?

I want to know, how to make my html file code to encrypted? So that if normal user see the code, then they don't understand the code?

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