diff --git a/Cargo.lock b/Cargo.lock
index 492100629..10286d367 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1051,6 +1051,7 @@ dependencies = [
  "ceno_sha2",
  "ceno_syscall",
  "k256 0.13.4 (git+https://github.com/scroll-tech/elliptic-curves?branch=ceno%2Fk256-13.4)",
+ "p256 0.13.2 (git+https://github.com/scroll-tech/elliptic-curves?branch=ceno%2Fk256-13.4)",
  "revm-precompile",
  "substrate-bn 0.6.0 (git+https://github.com/scroll-tech/bn?branch=ceno)",
  "thiserror 2.0.12",
@@ -4599,7 +4600,18 @@ checksum = "c9863ad85fa8f4460f9c48cb909d38a0d689dba1f6f6988a5e3e0d31071bcd4b"
 dependencies = [
  "ecdsa 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "elliptic-curve",
- "primeorder",
+ "primeorder 0.13.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2",
+]
+
+[[package]]
+name = "p256"
+version = "0.13.2"
+source = "git+https://github.com/scroll-tech/elliptic-curves?branch=ceno%2Fk256-13.4#05a8a81ef6300ff8bbf1d810b018bbeb71ab947c"
+dependencies = [
+ "ecdsa 0.16.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "elliptic-curve",
+ "primeorder 0.13.6 (git+https://github.com/scroll-tech/elliptic-curves?branch=ceno%2Fk256-13.4)",
  "sha2",
 ]
 
@@ -5286,6 +5298,14 @@ dependencies = [
  "elliptic-curve",
 ]
 
+[[package]]
+name = "primeorder"
+version = "0.13.6"
+source = "git+https://github.com/scroll-tech/elliptic-curves?branch=ceno%2Fk256-13.4#05a8a81ef6300ff8bbf1d810b018bbeb71ab947c"
+dependencies = [
+ "elliptic-curve",
+]
+
 [[package]]
 name = "primitive-types"
 version = "0.12.2"
@@ -5671,7 +5691,7 @@ dependencies = [
  "aurora-engine-modexp",
  "cfg-if",
  "k256 0.13.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "p256",
+ "p256 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "revm-primitives",
  "ripemd",
  "sha2",
@@ -6242,7 +6262,7 @@ dependencies = [
  "k256 0.13.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "multilinear_extensions 0.1.0 (git+https://github.com/scroll-tech/gkr-backend.git?tag=v1.0.0-alpha.18)",
  "num",
- "p256",
+ "p256 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "p3-field",
  "rug",
  "serde",
diff --git a/guest_libs/crypto/Cargo.toml b/guest_libs/crypto/Cargo.toml
index f8fc04ec4..8c94a5351 100644
--- a/guest_libs/crypto/Cargo.toml
+++ b/guest_libs/crypto/Cargo.toml
@@ -15,6 +15,7 @@ ceno_keccak = { path = "../keccak" }
 ceno_sha2 = { path = "../sha2" }
 ceno_syscall.workspace = true
 k256 = { git = "https://github.com/scroll-tech/elliptic-curves", branch = "ceno/k256-13.4", default-features = false, features = ["std", "ecdsa"] }
+p256 = { git = "https://github.com/scroll-tech/elliptic-curves", branch = "ceno/k256-13.4", default-features = false, features = ["std", "ecdsa"] }
 thiserror.workspace = true
 
 [dev-dependencies]
diff --git a/guest_libs/crypto/src/macros.rs b/guest_libs/crypto/src/macros.rs
index cd9afb81b..47d4b4e70 100644
--- a/guest_libs/crypto/src/macros.rs
+++ b/guest_libs/crypto/src/macros.rs
@@ -137,7 +137,7 @@ macro_rules! ceno_crypto {
                 sig: &[u8; 64],
                 pk: &[u8; 64],
             ) -> bool {
-                $crate::secp256r1::secp256r1_verify_signature(msg, sig, pk)
+                $crate::secp256r1::secp256r1_verify_signature(msg, sig, pk).is_some()
             }
         }
 
diff --git a/guest_libs/crypto/src/secp256r1.rs b/guest_libs/crypto/src/secp256r1.rs
index 2e73c277c..9b4af90e7 100644
--- a/guest_libs/crypto/src/secp256r1.rs
+++ b/guest_libs/crypto/src/secp256r1.rs
@@ -1,5 +1,28 @@
+use p256::{
+    EncodedPoint,
+    ecdsa::{Signature, VerifyingKey, signature::hazmat::PrehashVerifier},
+};
+
 /// secp256r1 (P-256) signature verification.
 #[inline]
-pub fn secp256r1_verify_signature(_msg: &[u8; 32], _sig: &[u8; 64], _pk: &[u8; 64]) -> bool {
-    unimplemented!()
+pub fn secp256r1_verify_signature(msg: &[u8; 32], sig: &[u8; 64], pk: &[u8; 64]) -> Option<()> {
+    #[cfg(feature = "profiling")]
+    ceno_syscall::syscall_phantom_log_pc_cycle("secp256r1_verify_signature start");
+    // Can fail only if the input is not exact length.
+    let signature = Signature::from_slice(sig).ok()?;
+    // Decode the public key bytes (x,y coordinates) using EncodedPoint
+    let encoded_point = EncodedPoint::from_untagged_bytes(pk.into());
+    // Create VerifyingKey from the encoded point
+    let public_key = VerifyingKey::from_encoded_point(&encoded_point).ok()?;
+
+    #[cfg(feature = "profiling")]
+    {
+        let res = public_key.verify_prehash(msg, &signature).ok();
+        ceno_syscall::syscall_phantom_log_pc_cycle("secp256r1_verify_signature end");
+        res
+    }
+    #[cfg(not(feature = "profiling"))]
+    {
+        public_key.verify_prehash(msg, &signature).ok()
+    }
 }