Add support for base64 encode/decode for the Sensitive types

bitwarden · Mar 7, 2024 · 19fecae · 19fecae
1 parent ba14e8c
commit 19fecae
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Showing 19 changed files with 232 additions and 181 deletions.
diff --git a/crates/bitwarden-crypto/src/enc_string/asymmetric.rs b/crates/bitwarden-crypto/src/enc_string/asymmetric.rs
@@ -210,9 +210,11 @@ mod tests {
     use schemars::schema_for;
 
     use super::{AsymmetricCryptoKey, AsymmetricEncString, KeyDecryptable};
-    use crate::DecryptedString;
+    use crate::{DecryptedString, SensitiveString};
 
-    const RSA_PRIVATE_KEY: &str = "-----BEGIN PRIVATE KEY-----
+    fn rsa_private_key_string() -> SensitiveString {
+        SensitiveString::test(
+            "-----BEGIN PRIVATE KEY-----
 MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCXRVrCX+2hfOQS
 8HzYUS2oc/jGVTZpv+/Ryuoh9d8ihYX9dd0cYh2tl6KWdFc88lPUH11Oxqy20Rk2
 e5r/RF6T9yM0Me3NPnaKt+hlhLtfoc0h86LnhD56A9FDUfuI0dVnPcrwNv0YJIo9
@@ -239,11 +241,13 @@ AoEZ18y6/KIjpSMpqC92Nnk/EBM9EYe6Cf4eA9ApAoGAeqEUg46UTlJySkBKURGp
 Is3v1kkf5I0X8DnOhwb+HPxNaiEdmO7ckm8+tPVgppLcG0+tMdLjigFQiDUQk2y3
 WjyxP5ZvXu7U96jaJRI8PFMoE06WeVYcdIzrID2HvqH+w0UQJFrLJ/0Mn4stFAEz
 XKZBokBGnjFnTnKcs7nv/O8=
------END PRIVATE KEY-----";
+-----END PRIVATE KEY-----",
+        )
+    }
 
     #[test]
     fn test_enc_string_rsa2048_oaep_sha256_b64() {
-        let private_key = AsymmetricCryptoKey::from_pem(RSA_PRIVATE_KEY).unwrap();
+        let private_key = AsymmetricCryptoKey::from_pem(rsa_private_key_string()).unwrap();
         let enc_str: &str = "3.YFqzW9LL/uLjCnl0RRLtndzGJ1FV27mcwQwGjfJPOVrgCX9nJSUYCCDd0iTIyOZ/zRxG47b6L1Z3qgkEfcxjmrSBq60gijc3E2TBMAg7OCLVcjORZ+i1sOVOudmOPWro6uA8refMrg4lqbieDlbLMzjVEwxfi5WpcL876cD0vYyRwvLO3bzFrsE7x33HHHtZeOPW79RqMn5efsB5Dj9wVheC9Ix9AYDjbo+rjg9qR6guwKmS7k2MSaIQlrDR7yu8LP+ePtiSjx+gszJV5jQGfcx60dtiLQzLS/mUD+RmU7B950Bpx0H7x56lT5yXZbWK5YkoP6qd8B8D2aKbP68Ywg==";
         let enc_string: AsymmetricEncString = enc_str.parse().unwrap();
 
@@ -255,7 +259,7 @@ XKZBokBGnjFnTnKcs7nv/O8=
 
     #[test]
     fn test_enc_string_rsa2048_oaep_sha1_b64() {
-        let private_key = AsymmetricCryptoKey::from_pem(RSA_PRIVATE_KEY).unwrap();
+        let private_key = AsymmetricCryptoKey::from_pem(rsa_private_key_string()).unwrap();
         let enc_str: &str = "4.ZheRb3PCfAunyFdQYPfyrFqpuvmln9H9w5nDjt88i5A7ug1XE0LJdQHCIYJl0YOZ1gCOGkhFu/CRY2StiLmT3iRKrrVBbC1+qRMjNNyDvRcFi91LWsmRXhONVSPjywzrJJXglsztDqGkLO93dKXNhuKpcmtBLsvgkphk/aFvxbaOvJ/FHdK/iV0dMGNhc/9tbys8laTdwBlI5xIChpRcrfH+XpSFM88+Bu03uK67N9G6eU1UmET+pISJwJvMuIDMqH+qkT7OOzgL3t6I0H2LDj+CnsumnQmDsvQzDiNfTR0IgjpoE9YH2LvPXVP2wVUkiTwXD9cG/E7XeoiduHyHjw==";
         let enc_string: AsymmetricEncString = enc_str.parse().unwrap();
 
@@ -267,7 +271,7 @@ XKZBokBGnjFnTnKcs7nv/O8=
 
     #[test]
     fn test_enc_string_rsa2048_oaep_sha1_hmac_sha256_b64() {
-        let private_key = AsymmetricCryptoKey::from_pem(RSA_PRIVATE_KEY).unwrap();
+        let private_key = AsymmetricCryptoKey::from_pem(rsa_private_key_string()).unwrap();
         let enc_str: &str = "6.ThnNc67nNr7GELyuhGGfsXNP2zJnNqhrIsjntEQ27r2qmn8vwdHbTbfO0cwt6YgSibDN0PjiCZ1O3Wb/IFq+vwvyRwFqF9145wBF8CQCbkhV+M0XvO99kh0daovtt120Nve/5ETI5PbPag9VdalKRQWZypJaqQHm5TAQVf4F5wtLlCLMBkzqTk+wkFe7BPMTGn07T+O3eJbTxXvyMZewQ7icJF0MZVA7VyWX9qElmZ89FCKowbf1BMr5pbcQ+0KdXcSVW3to43VkTp7k7COwsuH3M/i1AuVP5YN8ixjyRpvaeGqX/ap2nCHK2Wj5VxgCGT7XEls6ZknnAp9nB9qVjQ==|s3ntw5H/KKD/qsS0lUghTHl5Sm9j6m7YEdNHf0OeAFQ=";
         let enc_string: AsymmetricEncString = enc_str.parse().unwrap();
 

diff --git a/crates/bitwarden-crypto/src/enc_string/symmetric.rs b/crates/bitwarden-crypto/src/enc_string/symmetric.rs
@@ -306,7 +306,8 @@ mod tests {
 
     use super::EncString;
     use crate::{
-        derive_symmetric_key, DecryptedString, KeyDecryptable, KeyEncryptable, SymmetricCryptoKey,
+        derive_symmetric_key, DecryptedString, KeyDecryptable, KeyEncryptable, SensitiveString,
+        SymmetricCryptoKey,
     };
 
     #[test]
@@ -407,8 +408,8 @@ mod tests {
 
     #[test]
     fn test_decrypt_cbc256() {
-        let key = "hvBMMb1t79YssFZkpetYsM3deyVuQv4r88Uj9gvYe08=";
-        let key: SymmetricCryptoKey = key.parse().unwrap();
+        let key = SensitiveString::test("hvBMMb1t79YssFZkpetYsM3deyVuQv4r88Uj9gvYe08=");
+        let key = SymmetricCryptoKey::try_from(key).unwrap();
 
         let enc_str = "0.NQfjHLr6za7VQVAbrpL81w==|wfrjmyJ0bfwkQlySrhw8dA==";
         let enc_string: EncString = enc_str.parse().unwrap();
@@ -420,8 +421,8 @@ mod tests {
 
     #[test]
     fn test_decrypt_cbc128_hmac() {
-        let key = "Gt1aZ8kTTgkF80bLtb7LiMZBcxEA2FA5mbvV4x7K208=";
-        let key: SymmetricCryptoKey = key.parse().unwrap();
+        let key = SensitiveString::test("Gt1aZ8kTTgkF80bLtb7LiMZBcxEA2FA5mbvV4x7K208=");
+        let key = SymmetricCryptoKey::try_from(key).unwrap();
 
         let enc_str = "1.CU/oG4VZuxbHoZSDZjCLQw==|kb1HGwAk+fQ275ORfLf5Ew==|8UaEYHyqRZcG37JWhYBOBdEatEXd1u1/wN7OuImolcM=";
         let enc_string: EncString = enc_str.parse().unwrap();

diff --git a/crates/bitwarden-crypto/src/keys/asymmetric_crypto_key.rs b/crates/bitwarden-crypto/src/keys/asymmetric_crypto_key.rs
@@ -3,7 +3,10 @@ use std::pin::Pin;
 use rsa::{pkcs8::DecodePublicKey, RsaPrivateKey, RsaPublicKey};
 
 use super::key_encryptable::CryptoKey;
-use crate::error::{CryptoError, Result};
+use crate::{
+    error::{CryptoError, Result},
+    SensitiveString, SensitiveVec,
+};
 
 /// Trait to allow both [`AsymmetricCryptoKey`] and [`AsymmetricPublicCryptoKey`] to be used to
 /// encrypt [AsymmetricEncString](crate::AsymmetricEncString).
@@ -20,9 +23,9 @@ pub struct AsymmetricPublicCryptoKey {
 
 impl AsymmetricPublicCryptoKey {
     /// Build a public key from the SubjectPublicKeyInfo DER.
-    pub fn from_der(der: &[u8]) -> Result<Self> {
+    pub fn from_der(der: SensitiveVec) -> Result<Self> {
         Ok(Self {
-            key: rsa::RsaPublicKey::from_public_key_der(der)
+            key: rsa::RsaPublicKey::from_public_key_der(der.expose())
                 .map_err(|_| CryptoError::InvalidKey)?,
         })
     }
@@ -65,17 +68,21 @@ impl AsymmetricCryptoKey {
         }
     }
 
-    pub fn from_pem(pem: &str) -> Result<Self> {
+    pub fn from_pem(pem: SensitiveString) -> Result<Self> {
         use rsa::pkcs8::DecodePrivateKey;
         Ok(Self {
-            key: Box::pin(RsaPrivateKey::from_pkcs8_pem(pem).map_err(|_| CryptoError::InvalidKey)?),
+            key: Box::pin(
+                RsaPrivateKey::from_pkcs8_pem(pem.expose()).map_err(|_| CryptoError::InvalidKey)?,
+            ),
         })
     }
 
-    pub fn from_der(der: &[u8]) -> Result<Self> {
+    pub fn from_der(der: SensitiveVec) -> Result<Self> {
         use rsa::pkcs8::DecodePrivateKey;
         Ok(Self {
-            key: Box::pin(RsaPrivateKey::from_pkcs8_der(der).map_err(|_| CryptoError::InvalidKey)?),
+            key: Box::pin(
+                RsaPrivateKey::from_pkcs8_der(der.expose()).map_err(|_| CryptoError::InvalidKey)?,
+            ),
         })
     }
 
@@ -117,16 +124,17 @@ impl std::fmt::Debug for AsymmetricCryptoKey {
 
 #[cfg(test)]
 mod tests {
-    use base64::{engine::general_purpose::STANDARD, Engine};
+    use base64::engine::general_purpose::STANDARD;
 
     use crate::{
         AsymmetricCryptoKey, AsymmetricEncString, AsymmetricPublicCryptoKey, DecryptedString,
-        KeyDecryptable,
+        KeyDecryptable, SensitiveString,
     };
 
     #[test]
     fn test_asymmetric_crypto_key() {
-        let pem_key_str = "-----BEGIN PRIVATE KEY-----
+        let pem_key_str = SensitiveString::test(
+            "-----BEGIN PRIVATE KEY-----
 MIIEwAIBADANBgkqhkiG9w0BAQEFAASCBKowggSmAgEAAoIBAQDiTQVuzhdygFz5
 qv14i+XFDGTnDravzUQT1hPKPGUZOUSZ1gwdNgkWqOIaOnR65BHEnL0sp4bnuiYc
 afeK2JAW5Sc8Z7IxBNSuAwhQmuKx3RochMIiuCkI2/p+JvUQoJu6FBNm8OoJ4Cwm
@@ -153,67 +161,68 @@ Zy2o6PPxhfkagaDjqEeN9Lrs5LD4nEvDkr5CG1vOjmMCgYEAvIBFKRm31NyF8jLi
 CVuPwC5PzrW5iThDmsWTaXFpB3esUsbICO2pEz872oeQS+Em4GO5vXUlpbbFPzup
 PFhA8iMJ8TAvemhvc7oM0OZqpU6p3K4seHf6BkwLxumoA3vDJfovu9RuXVcJVOnf
 DnqOsltgPomWZ7xVfMkm9niL2OA=
------END PRIVATE KEY-----";
+-----END PRIVATE KEY-----",
+        );
 
-        let der_key_vec = STANDARD.decode("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").unwrap();
+        let der_key_vec = SensitiveString::test("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").decode_base64(STANDARD).unwrap();
 
         // Load the two different formats and check they are the same key
         let pem_key = AsymmetricCryptoKey::from_pem(pem_key_str).unwrap();
-        let der_key = AsymmetricCryptoKey::from_der(&der_key_vec).unwrap();
+        let der_key = AsymmetricCryptoKey::from_der(der_key_vec.clone()).unwrap();
         assert_eq!(pem_key.key, der_key.key);
 
         // Check that the keys can be converted back to DER
-        assert_eq!(der_key.to_der().unwrap(), der_key_vec);
-        assert_eq!(pem_key.to_der().unwrap(), der_key_vec);
+        assert_eq!(&der_key.to_der().unwrap(), der_key_vec.expose());
+        assert_eq!(&pem_key.to_der().unwrap(), der_key_vec.expose());
     }
 
     #[test]
     fn test_encrypt_public_decrypt_private() {
-        let private_key = STANDARD
-            .decode(concat!(
-                "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCu9xd+vmkIPoqH",
-                "NejsFZzkd1xuCn1TqGTT7ANhAEnbI/yaVt3caI30kwUC2WIToFpNgu7Ej0x2TteY",
-                "OgrLrdcC4jy1SifmKYv/v3ZZxrd/eqttmH2k588panseRwHK3LVk7xA+URhQ/bjL",
-                "gPM59V0uR1l+z1fmooeJPFz5WSXNObc9Jqnh45FND+U/UYHXTLSomTn7jgZFxJBK",
-                "veS7q6Lat7wAnYZCF2dnPmhZoJv+SKPltA8HAGsgQGWBF1p5qxV1HrAUk8kBBnG2",
-                "paj0w8p5UM6RpDdCuvKH7j1LiuWffn3b9Z4dgzmE7jsMmvzoQtypzIKaSxhqzvFO",
-                "od9V8dJdAgMBAAECggEAGGIYjOIB1rOKkDHP4ljXutI0mCRPl3FMDemiBeppoIfZ",
-                "G/Q3qpAKmndDt0Quwh/yfcNdvZhf1kwCCTWri/uPz5fSUIyDV3TaTRu0ZWoHaBVj",
-                "Hxylg+4HRZUQj+Vi50/PWr/jQmAAVMcrMfcoTl82q2ynmP/R1vM3EsXOCjTliv5B",
-                "XlMPRjj/9PDBH0dnnVcAPDOpflzOTL2f4HTFEMlmg9/tZBnd96J/cmfhjAv9XpFL",
-                "FBAFZzs5pz0rwCNSR8QZNonnK7pngVUlGDLORK58y84tGmxZhGdne3CtCWey/sJ4",
-                "7QF0Pe8YqWBU56926IY6DcSVBuQGZ6vMCNlU7J8D2QKBgQDXyh3t2TicM/n1QBLk",
-                "zLoGmVUmxUGziHgl2dnJiGDtyOAU3+yCorPgFaCie29s5qm4b0YEGxUxPIrRrEro",
-                "h0FfKn9xmr8CdmTPTcjJW1+M7bxxq7oBoU/QzKXgIHlpeCjjnvPJt0PcNkNTjCXv",
-                "shsrINh2rENoe/x79eEfM/N5eQKBgQDPkYSmYyALoNq8zq0A4BdR+F5lb5Fj5jBH",
-                "Jk68l6Uti+0hRbJ2d1tQTLkU+eCPQLGBl6fuc1i4K5FV7v14jWtRPdD7wxrkRi3j",
-                "ilqQwLBOU6Bj3FK4DvlLF+iYTuBWj2/KcxflXECmsjitKHLK6H7kFEiuJql+NAHU",
-                "U9EFXepLBQKBgQDQ+HCnZ1bFHiiP8m7Zl9EGlvK5SwlnPV9s+F1KJ4IGhCNM09UM",
-                "ZVfgR9F5yCONyIrPiyK40ylgtwqQJlOcf281I8irUXpsfg7+Gou5Q31y0r9NLUpC",
-                "Td8niyePtqMdGjouxD2+OHXFCd+FRxFt4IMi7vnxYr0csAVAXkqWlw7PsQKBgH/G",
-                "/PnQm7GM3BrOwAGB8dksJDAddkshMScblezTDYP0V43b8firkTLliCo5iNum357/",
-                "VQmdSEhXyag07yR/Kklg3H2fpbZQ3X7tdMMXW3FcWagfwWw9C4oGtdDM/Z1Lv23J",
-                "XDR9je8QV4OBGul+Jl8RfYx3kG94ZIfo8Qt0vP5hAoGARjAzdCGYz42NwaUk8n94",
-                "W2RuKHtTV9vtjaAbfPFbZoGkT7sXNJVlrA0C+9f+H9rOTM3mX59KrjmLVzde4Vhs",
-                "avWMShuK4vpAiDQLU7GyABvi5CR6Ld+AT+LSzxHhVe0ASOQPNCA2SOz3RQvgPi7R",
-                "GDgRMUB6cL3IRVzcR0dC6cY=",
-            ))
-            .unwrap();
-
-        let public_key = STANDARD
-            .decode(concat!(
-                "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArvcXfr5pCD6KhzXo7BWc",
-                "5Hdcbgp9U6hk0+wDYQBJ2yP8mlbd3GiN9JMFAtliE6BaTYLuxI9Mdk7XmDoKy63X",
-                "AuI8tUon5imL/792Wca3f3qrbZh9pOfPKWp7HkcByty1ZO8QPlEYUP24y4DzOfVd",
-                "LkdZfs9X5qKHiTxc+VklzTm3PSap4eORTQ/lP1GB10y0qJk5+44GRcSQSr3ku6ui",
-                "2re8AJ2GQhdnZz5oWaCb/kij5bQPBwBrIEBlgRdaeasVdR6wFJPJAQZxtqWo9MPK",
-                "eVDOkaQ3Qrryh+49S4rln3592/WeHYM5hO47DJr86ELcqcyCmksYas7xTqHfVfHS",
-                "XQIDAQAB",
-            ))
-            .unwrap();
-
-        let private_key = AsymmetricCryptoKey::from_der(&private_key).unwrap();
-        let public_key = AsymmetricPublicCryptoKey::from_der(&public_key).unwrap();
+        let private_key = SensitiveString::test(concat!(
+            "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCu9xd+vmkIPoqH",
+            "NejsFZzkd1xuCn1TqGTT7ANhAEnbI/yaVt3caI30kwUC2WIToFpNgu7Ej0x2TteY",
+            "OgrLrdcC4jy1SifmKYv/v3ZZxrd/eqttmH2k588panseRwHK3LVk7xA+URhQ/bjL",
+            "gPM59V0uR1l+z1fmooeJPFz5WSXNObc9Jqnh45FND+U/UYHXTLSomTn7jgZFxJBK",
+            "veS7q6Lat7wAnYZCF2dnPmhZoJv+SKPltA8HAGsgQGWBF1p5qxV1HrAUk8kBBnG2",
+            "paj0w8p5UM6RpDdCuvKH7j1LiuWffn3b9Z4dgzmE7jsMmvzoQtypzIKaSxhqzvFO",
+            "od9V8dJdAgMBAAECggEAGGIYjOIB1rOKkDHP4ljXutI0mCRPl3FMDemiBeppoIfZ",
+            "G/Q3qpAKmndDt0Quwh/yfcNdvZhf1kwCCTWri/uPz5fSUIyDV3TaTRu0ZWoHaBVj",
+            "Hxylg+4HRZUQj+Vi50/PWr/jQmAAVMcrMfcoTl82q2ynmP/R1vM3EsXOCjTliv5B",
+            "XlMPRjj/9PDBH0dnnVcAPDOpflzOTL2f4HTFEMlmg9/tZBnd96J/cmfhjAv9XpFL",
+            "FBAFZzs5pz0rwCNSR8QZNonnK7pngVUlGDLORK58y84tGmxZhGdne3CtCWey/sJ4",
+            "7QF0Pe8YqWBU56926IY6DcSVBuQGZ6vMCNlU7J8D2QKBgQDXyh3t2TicM/n1QBLk",
+            "zLoGmVUmxUGziHgl2dnJiGDtyOAU3+yCorPgFaCie29s5qm4b0YEGxUxPIrRrEro",
+            "h0FfKn9xmr8CdmTPTcjJW1+M7bxxq7oBoU/QzKXgIHlpeCjjnvPJt0PcNkNTjCXv",
+            "shsrINh2rENoe/x79eEfM/N5eQKBgQDPkYSmYyALoNq8zq0A4BdR+F5lb5Fj5jBH",
+            "Jk68l6Uti+0hRbJ2d1tQTLkU+eCPQLGBl6fuc1i4K5FV7v14jWtRPdD7wxrkRi3j",
+            "ilqQwLBOU6Bj3FK4DvlLF+iYTuBWj2/KcxflXECmsjitKHLK6H7kFEiuJql+NAHU",
+            "U9EFXepLBQKBgQDQ+HCnZ1bFHiiP8m7Zl9EGlvK5SwlnPV9s+F1KJ4IGhCNM09UM",
+            "ZVfgR9F5yCONyIrPiyK40ylgtwqQJlOcf281I8irUXpsfg7+Gou5Q31y0r9NLUpC",
+            "Td8niyePtqMdGjouxD2+OHXFCd+FRxFt4IMi7vnxYr0csAVAXkqWlw7PsQKBgH/G",
+            "/PnQm7GM3BrOwAGB8dksJDAddkshMScblezTDYP0V43b8firkTLliCo5iNum357/",
+            "VQmdSEhXyag07yR/Kklg3H2fpbZQ3X7tdMMXW3FcWagfwWw9C4oGtdDM/Z1Lv23J",
+            "XDR9je8QV4OBGul+Jl8RfYx3kG94ZIfo8Qt0vP5hAoGARjAzdCGYz42NwaUk8n94",
+            "W2RuKHtTV9vtjaAbfPFbZoGkT7sXNJVlrA0C+9f+H9rOTM3mX59KrjmLVzde4Vhs",
+            "avWMShuK4vpAiDQLU7GyABvi5CR6Ld+AT+LSzxHhVe0ASOQPNCA2SOz3RQvgPi7R",
+            "GDgRMUB6cL3IRVzcR0dC6cY=",
+        ))
+        .decode_base64(STANDARD)
+        .unwrap();
+
+        let public_key = SensitiveString::test(concat!(
+            "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArvcXfr5pCD6KhzXo7BWc",
+            "5Hdcbgp9U6hk0+wDYQBJ2yP8mlbd3GiN9JMFAtliE6BaTYLuxI9Mdk7XmDoKy63X",
+            "AuI8tUon5imL/792Wca3f3qrbZh9pOfPKWp7HkcByty1ZO8QPlEYUP24y4DzOfVd",
+            "LkdZfs9X5qKHiTxc+VklzTm3PSap4eORTQ/lP1GB10y0qJk5+44GRcSQSr3ku6ui",
+            "2re8AJ2GQhdnZz5oWaCb/kij5bQPBwBrIEBlgRdaeasVdR6wFJPJAQZxtqWo9MPK",
+            "eVDOkaQ3Qrryh+49S4rln3592/WeHYM5hO47DJr86ELcqcyCmksYas7xTqHfVfHS",
+            "XQIDAQAB",
+        ))
+        .decode_base64(STANDARD)
+        .unwrap();
+
+        let private_key = AsymmetricCryptoKey::from_der(private_key).unwrap();
+        let public_key = AsymmetricPublicCryptoKey::from_der(public_key).unwrap();
 
         let plaintext = "Hello, world!";
         let encrypted =