![]() They are BEGIN line, one or more base64 line(s) broken every 64 characters, and END line. Also, PEM files are not just BEGIN line, one base64 line, and END line. PRIVATE_KEY = new String(Base64.encode(privateKeyBytes, Base64. The correct PEM type for PKCS8-unencrypted is PRIVATE KEY- not RSA PRIVATE KEY which is for PKCS1. Save the public key so it is not generated each and every timeīyte privateKeyBytes = privateKey.getEncoded() PUB_KEY = new String(Base64.encode(publicKeyBytes, Base64.DEFAULT)) *private final static int CRYPTO_BITS = 4096 This will encrypt in 4093bits, note however that is slower.*/īyte publicKeyBytes = publicKey.getEncoded() Private static String PRIVATE_KEY = "privateKey" ![]() Private static String PUB_KEY = "pubKey" Private final static int CRYPTO_BITS = 2048 Private final static String CYPHER = "RSA/ECB/OAEPWITHSHA-256ANDMGF1PADDING" Private final static String CRYPTO_METHOD = "RSA" To demo this i have created a empty android App and you can follow the guide and examine the code below. ![]() This will allow you to generate and public and private key that can be used to encrypt and decrypt your data. ![]() Using 2048-bit RSA with SHA-256 is a secure signing scheme for a certificate. SHA-256 is a perfectly good secure hashing algorithm and quite suitable for use on certificates while 2048-bit RSA is a good signing algorithm (do note that signing is not the same as encrypting). Since SHA-1 and RSA-1024 is outdated and has shown low security, SHA-256 and RSA 2048 is the current standard. ![]()
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