build(deps): get rid of num-bigint-dig (#425)

Author: RRRadicalEdward

Cargo.lock

@@ -22,19 +22,19 @@ picky-asn1-der = { version = "0.5", path = "../picky-asn1-der" }
 serde = { version = "1", features = ["derive"] }
 oid = { version = "0.2", features = ["serde_support"] }
 base64 = "0.22"
-num-bigint-dig = { version = "0.8", optional = true }
+crypto-bigint = { version = "=0.7.0-rc.8", optional = true, features = ["alloc"], default-features = false }
 widestring = { version = "1.1", default-features = false, features = ["alloc"], optional = true }
 zeroize = { version = "1.8", optional = true }
 
 [dev-dependencies]
-num-bigint-dig = "0.8"
+crypto-bigint = { version = "=0.7.0-rc.8", features = ["alloc"], default-features = false }
 pretty_assertions = "1.4"
 hex = "0.4"
 expect-test = "1"
 picky-test-data = { path = "../picky-test-data", version = "0.1" }
 
 [features]
-legacy = ["num-bigint-dig"]
+legacy = ["crypto-bigint"]
 pkcs7 = ["widestring"]
 pkcs12 = []
 ctl = ["pkcs7"]

ffi/wasm/Cargo.lock

@@ -163,7 +163,7 @@ mod tests {
     use crate::{DirectoryName, Extension, KeyIdentifier, KeyUsage};
     use base64::Engine as _;
     use base64::engine::general_purpose;
-    use num_bigint_dig::BigInt;
+    use crypto_bigint::BoxedUint;
     use picky_asn1::bit_string::BitString;
     use picky_asn1::date::UTCTime;
 
@@ -218,7 +218,10 @@ mod tests {
 
         let subject_public_key_info = SubjectPublicKeyInfo::new_rsa_key(
             IntegerAsn1::from(encoded[165..422].to_vec()),
-            BigInt::from(65537).to_signed_bytes_be().into(),
+            BoxedUint::from(65537u32)
+                .to_be_bytes_trimmed_vartime()
+                .into_vec()
+                .into(),
         );
         check_serde!(subject_public_key_info: SubjectPublicKeyInfo in encoded[133..427]);
 
@@ -245,7 +248,10 @@ mod tests {
 
         let tbs_certificate = TbsCertificate {
             version: ExplicitContextTag0(Version::V3),
-            serial_number: BigInt::from(935548868).to_signed_bytes_be().into(),
+            serial_number: BoxedUint::from(935548868u32)
+                .to_be_bytes_trimmed_vartime()
+                .into_vec()
+                .into(),
             signature: signature_algorithm.clone(),
             issuer,
             validity,