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Fix Deprecated SecKeyEncrypt Class (iOS) #2083

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merged 2 commits into from
Mar 6, 2022
Merged

Fix Deprecated SecKeyEncrypt Class (iOS) #2083

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c29e77d
rename SecKeyEncrypt to SecKey
fujiokayu Mar 6, 2022
1293dd8
fix first link of SecKey
fujiokayu Mar 6, 2022
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4 changes: 2 additions & 2 deletions Document/0x06e-Testing-Cryptography.md
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Expand Up @@ -59,7 +59,7 @@ For more information about Apple CryptoKit, please visit the following resources
- [WWDC 2019 session 709 | Cryptography and Your Apps](https://developer.apple.com/videos/play/wwdc19/709/ "Cryptography and Your Apps from WWDC 2019 session 709")
- [How to calculate the SHA hash of a String or Data instance | Hacking with Swift](https://www.hackingwithswift.com/example-code/cryptokit/how-to-calculate-the-sha-hash-of-a-string-or-data-instance "How to calculate the SHA hash of a String or Data instance from Hacking with Swift")

#### CommonCrypto, SecKeyEncrypt and Wrapper libraries
#### CommonCrypto, SecKey and Wrapper libraries

The most commonly used Class for cryptographic operations is the CommonCrypto, which is packed with the iOS runtime. The functionality offered by the CommonCrypto object can best be dissected by having a look at the [source code of the header file](https://opensource.apple.com/source/CommonCrypto/CommonCrypto-36064/CommonCrypto/CommonCryptor.h.auto.html "CommonCrypto.h"):

Expand All @@ -71,7 +71,7 @@ The most commonly used Class for cryptographic operations is the CommonCrypto, w

Unfortunately, CommonCryptor lacks a few types of operations in its public APIs, such as: GCM mode is only available in its private APIs See [its source code](https://opensource.apple.com/source/CommonCrypto/CommonCrypto-60074/include/CommonCryptorSPI.h "GCM in CC"). For this, an additional binding header is necessary or other wrapper libraries can be used.

Next, for asymmetric operations, Apple provides [SecKey](https://opensource.apple.com/source/Security/Security-57740.51.3/keychain/SecKey.h.auto.html "SecKey"). Apple provides a nice guide in its [Developer Documentation](https://developer.apple.com/documentation/security/certificate_key_and_trust_services/keys/using_keys_for_encryption "Using keys for encryption") on how to use this.
Next, for asymmetric operations, Apple provides [SecKey](https://developer.apple.com/documentation/security/seckey "SecKey"). Apple provides a nice guide in its [Developer Documentation](https://developer.apple.com/documentation/security/certificate_key_and_trust_services/keys/using_keys_for_encryption "Using keys for encryption") on how to use this.

As noted before: some wrapper-libraries exist for both in order to provide convenience. Typical libraries that are used are, for instance:

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