diff --git a/Cargo.lock b/Cargo.lock
index 2a6f5be..471b234 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -332,7 +332,7 @@ dependencies = [
 
 [[package]]
 name = "card-cli"
-version = "1.8.1"
+version = "1.8.2"
 dependencies = [
  "authenticator",
  "base64 0.21.5",
diff --git a/Cargo.toml b/Cargo.toml
index 850e08d..d097855 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "card-cli"
-version = "1.8.1"
+version = "1.8.2"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 
diff --git a/src/cmd_pivverify.rs b/src/cmd_pivverify.rs
index 4dc2312..3592085 100644
--- a/src/cmd_pivverify.rs
+++ b/src/cmd_pivverify.rs
@@ -1,6 +1,7 @@
 use std::collections::BTreeMap;
 
 use clap::{App, Arg, ArgMatches, SubCommand};
+use openssl::rsa::{Padding, Rsa};
 use rust_util::{util_msg, XResult};
 use rust_util::util_clap::{Command, CommandError};
 use yubikey::{Key, YubiKey};
@@ -78,9 +79,21 @@ impl Command for CommandImpl {
                     }
                     AlgorithmId::Rsa1024 | AlgorithmId::Rsa2048 => {
                         let pk_rsa = public_key_bit_string.raw_bytes();
-                        // TODO ...
+
+                        let keypair = opt_result!(Rsa::public_key_from_der_pkcs1(&pk_rsa), "Parse RSA failed: {}");
+                        // let pub_key_der = opt_result!(keypair.public_key_to_der(), "RSA public key to der failed: {}");
+                        // let pub_key_fingerprint = hex::encode(sha256_bytes(&pub_key_der));
+                        let mut dmesg = vec![0; ((keypair.n().num_bits() + 7) / 8) as usize];
+                        let len = opt_result!(keypair.public_decrypt(&signature, &mut dmesg, Padding::NONE), "RSA public key calc failed: {}");
                         debugging!("RSA public key pem: {}", hex::encode(pk_rsa));
-                        failure!("Current NOT supported.");
+                        debugging!("Public key calc: {}, len: {}", hex::encode(&dmesg), len);
+
+                        // TODO SHOULD IMPROVE VERIFICATION METHOD IN THE FUTURE
+                        if hex::encode(dmesg).ends_with(&hex::encode(&hash_bytes)) {
+                            success!("Verify RSA Sign succeed.");
+                        } else {
+                            failure!("Verify RSA Sign failed.");
+                        }
                     }
                 }
             }