ecdsa

问题 I have a JWT that is as follows: Authorization: Bearer eyJhbGciOiJFUzM4NCIsInR5cCI6IkpXVCIsImtpZCI6IjQ0ODIzZjNkLTBiMDEtNGE2Yy1hODBlLWI5ZDNlOGE3MjI2ZiIsImprdSI6Imh0dHBzOi8vc2FuZGJveC5jZHMtaG9va3Mub3JnLy53ZWxsLWtub3duL2p3a3MuanNvbiJ9.eyJpc3MiOiJodHRwczovL3NhbmRib3guY2RzLWhvb2tzLm9yZyIsImF1ZCI6Imh0dHA6Ly8xMjcuMC4wLjE6ODAwMC9jZHMtc2VydmljZXMiLCJleHAiOjE1OTQyMzA5MDAsImlhdCI6MTU5NDIzMDYwMCwianRpIjoiZWZiMzc3M2QtM2EyOC00M2UyLTlmYmMtYjkzNmE5YWUzODhiIn0.Cbey3n5NkDRoCLHZ2WMFc1z

问题 I have a JWT that is as follows: Authorization: Bearer eyJhbGciOiJFUzM4NCIsInR5cCI6IkpXVCIsImtpZCI6IjQ0ODIzZjNkLTBiMDEtNGE2Yy1hODBlLWI5ZDNlOGE3MjI2ZiIsImprdSI6Imh0dHBzOi8vc2FuZGJveC5jZHMtaG9va3Mub3JnLy53ZWxsLWtub3duL2p3a3MuanNvbiJ9.eyJpc3MiOiJodHRwczovL3NhbmRib3guY2RzLWhvb2tzLm9yZyIsImF1ZCI6Imh0dHA6Ly8xMjcuMC4wLjE6ODAwMC9jZHMtc2VydmljZXMiLCJleHAiOjE1OTQyMzA5MDAsImlhdCI6MTU5NDIzMDYwMCwianRpIjoiZWZiMzc3M2QtM2EyOC00M2UyLTlmYmMtYjkzNmE5YWUzODhiIn0.Cbey3n5NkDRoCLHZ2WMFc1z

问题 I'm a beginner to ECC crypto programming. Does any one explain to me the difference with using ECDH for shared key exchange and use of ECIES by encrypting shared key with the public key of the receiver ? I'm feeling that ECIES could also provide me secure key exchange as long as the private key is kept secret. Thank you. 回答1: ECDH is a shared-secret derivation protocol. Two parties use knowledge of their own "private key" and their partner's "public key" to generate a shared secret. Generally

问题 I am trying to generate signature using ECDSA with secp256r1 curve (P256) and SHA256 algorithm for message hash. Also i am using Bouncy Castle libraries. Code below, public class MyTest { /** * @param args */ public static void main(String[] args) { new MyTest().getSign(); } void getSign() { // Get the instance of the Key Generator with "EC" algorithm try { KeyPairGenerator g = KeyPairGenerator.getInstance("EC"); ECGenParameterSpec kpgparams = new ECGenParameterSpec("secp256r1"); g.initialize

问题 import android.os.Bundle; import android.util.Base64; import android.widget.Toast; import org.bouncycastle.jce.provider.BouncyCastleProvider; // implementation 'org.bouncycastle:bcprov-jdk16:1.46' import java.security.KeyFactory; import java.security.PublicKey; import java.security.Security; import java.security.Signature; import java.security.spec.X509EncodedKeySpec; import androidx.appcompat.app.AppCompatActivity; public class MainActivity extends AppCompatActivity { static final String

来源： https://stackoverflow.com/questions/59904522/asn1-encoding-routines-errors-when-verifying-ecdsa-signature-type-with-openssl

来源： https://stackoverflow.com/questions/59904522/asn1-encoding-routines-errors-when-verifying-ecdsa-signature-type-with-openssl

来源： https://stackoverflow.com/questions/59904522/asn1-encoding-routines-errors-when-verifying-ecdsa-signature-type-with-openssl

来源： https://stackoverflow.com/questions/59904522/asn1-encoding-routines-errors-when-verifying-ecdsa-signature-type-with-openssl

来源： https://stackoverflow.com/questions/59078889/ecdsa-verify-signature-in-c-sharp-using-public-key-and-signature-from-java