3 files changed, 112 insertions, 12 deletions
diff --git a/guests/rsa/Cargo.lock b/guests/rsa/Cargo.lock
index 925e62e..34fef06 100644
--- a/guests/rsa/Cargo.lock
+++ b/guests/rsa/Cargo.lock
@@ -3,6 +3,18 @@
 version = 3
 
 [[package]]
+name = "arrayref"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76a2e8124351fda1ef8aaaa3bbd7ebbcb486bbcd4225aca0aa0d84bb2db8fecb"
+
+[[package]]
+name = "arrayvec"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
+
+[[package]]
 name = "autocfg"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -30,6 +42,19 @@ dependencies = [
 ]
 
 [[package]]
+name = "blake3"
+version = "1.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3888aaa89e4b2a40fca9848e400f6a658a5a3978de7be858e209cafa8be9a4a0"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "cc",
+ "cfg-if",
+ "constant_time_eq",
+]
+
+[[package]]
 name = "block-buffer"
 version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -71,6 +96,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
+name = "cc"
+version = "1.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e3a13707ac958681c13b39b458c073d0d9bc8a22cb1b2f4c8e55eb72c13f362"
+dependencies = [
+ "shlex",
+]
+
+[[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -83,6 +117,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
 [[package]]
+name = "constant_time_eq"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c74b8349d32d297c9134b8c88677813a227df8f779daa29bfc29c183fe3dca6"
+
+[[package]]
 name = "cpufeatures"
 version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -115,9 +155,9 @@ dependencies = [
 
 [[package]]
 name = "der"
-version = "0.7.9"
+version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f55bf8e7b65898637379c1b74eb1551107c8294ed26d855ceb9fd1a09cfc9bc0"
+checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
 dependencies = [
  "const-oid",
  "pem-rfc7468",
@@ -196,9 +236,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -256,6 +296,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "include_bytes_aligned"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ee796ad498c8d9a1d68e477df8f754ed784ef875de1414ebdaf169f70a6a784"
+
+[[package]]
 name = "indexmap"
 version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -300,9 +346,9 @@ checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
 
 [[package]]
 name = "libm"
-version = "0.2.11"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8355be11b20d696c8f18f6cc018c4e372165b1fa8126cef092399c9951984ffa"
+checksum = "c9627da5196e5d8ed0b0495e61e518847578da83483c37288316d9b2e03a7f72"
 
 [[package]]
 name = "log"
@@ -585,6 +631,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "risc0-bigint2"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "936616ad8d3bd4d54b0c2f2f621652dc5ec630e3fc3dba32bcfcb1475c6af4f7"
+dependencies = [
+ "include_bytes_aligned",
+ "num-bigint-dig",
+ "stability",
+]
+
+[[package]]
 name = "rsa"
 version = "0.1.0"
 dependencies = [
@@ -593,6 +650,7 @@ dependencies = [
  "guests_macro",
  "js-sys",
  "rsa 0.9.6",
+ "rsa 0.9.7",
  "rsa 0.9.8",
  "sha2",
 ]
@@ -622,6 +680,26 @@ dependencies = [
 
 [[package]]
 name = "rsa"
+version = "0.9.7"
+source = "git+https://github.com/risc0/RustCrypto-RSA?tag=v0.9.7-risczero.0#6d722ba4fadbdb65a4a023e226db995fae3d1665"
+dependencies = [
+ "const-oid",
+ "digest",
+ "num-bigint-dig",
+ "num-integer",
+ "num-traits",
+ "pkcs1",
+ "pkcs8",
+ "rand_core",
+ "risc0-bigint2",
+ "signature",
+ "spki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rsa"
 version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78928ac1ed176a5ca1d17e578a1825f3d81ca54cf41053a592584b020cfd691b"
@@ -700,6 +778,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
+[[package]]
 name = "signature"
 version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -717,9 +801,9 @@ checksum = "8917285742e9f3e1683f0a9c4e6b57960b7314d0b08d30d1ecd426713ee2eee9"
 
 [[package]]
 name = "sp1-lib"
-version = "4.1.7"
+version = "4.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4b2747ae411bca4ba0dd4112779246b101ac7e8f70afc1a33cf8ee003980d7"
+checksum = "b3ef88f90458b6116da164e9c4c4596c49c8cca1944bfe02850b48b232a06b90"
 dependencies = [
  "bincode",
  "elliptic-curve",
@@ -729,11 +813,13 @@ dependencies = [
 
 [[package]]
 name = "sp1-primitives"
-version = "4.1.7"
+version = "4.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7939f86891aa5995fa863abf296645a5ad4611d9598a8101389f85c624d41043"
+checksum = "c1cc282347d405f23fc8a7cfe93c82e772920bf2e0722cf828eaea69ed530e49"
 dependencies = [
  "bincode",
+ "blake3",
+ "cfg-if",
  "hex",
  "lazy_static",
  "num-bigint",
@@ -762,6 +848,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "stability"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d904e7009df136af5297832a3ace3370cd14ff1546a232f4f185036c2736fcac"
+dependencies = [
+ "quote",
+ "syn",
+]
+
+[[package]]
 name = "subtle"
 version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/guests/rsa/Cargo.toml b/guests/rsa/Cargo.toml
index 9643b60..5e0c135 100644
--- a/guests/rsa/Cargo.toml
+++ b/guests/rsa/Cargo.toml
@@ -13,12 +13,13 @@ js-sys = "=0.3.72"
 getrandom = { version = "0.2", features = ["js"] }
 
 rsa-sp1 = { git = "https://github.com/sp1-patches/RustCrypto-RSA", package = "rsa", tag = "patch-0.9.6-sp1-4.0.0-v2", optional = true }
+rsa-risc0 = { git = "https://github.com/risc0/RustCrypto-RSA", package = "rsa", tag = "v0.9.7-risczero.0", optional = true }
 
 [features]
 no_std = []
 jolt = []
 nexus = []
-risc0 = []
+risc0 = ["rsa-risc0"]
 sp1 = ["rsa-sp1"]
 zkm = []
 zkwasm = []
diff --git a/guests/rsa/src/lib.rs b/guests/rsa/src/lib.rs
index b2067cf..20b0cbd 100644
--- a/guests/rsa/src/lib.rs
+++ b/guests/rsa/src/lib.rs
@@ -10,7 +10,10 @@ use sha2::{Digest, Sha256};
 #[cfg(feature = "sp1")]
 use rsa_sp1::{pkcs8::DecodePublicKey, Pkcs1v15Sign, RsaPublicKey};
 
-#[cfg(not(feature = "sp1"))]
+#[cfg(feature = "risc0")]
+use rsa_risc0::{pkcs8::DecodePublicKey, Pkcs1v15Sign, RsaPublicKey};
+
+#[cfg(not(any(feature = "sp1", feature = "risc0")))]
 use rsa::{pkcs8::DecodePublicKey, Pkcs1v15Sign, RsaPublicKey};
 
 #[guests_macro::proving_entrypoint]