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@@ -61,8 +61,18 @@ explicitly enable a crypto backend.
## Crypto backends
-Currently, Sequoia only supports the Nettle cryptographic library as
-crypto backend. To enable it, use the `crypto-nettle` flag.
+Sequoia supports multiple cryptographic libraries that can be selected
+at compile time. Currently, these libraries are available:
+
+ - The Nettle cryptographic library. This is the default backend,
+ and is selected by the default feature set. If you use
+ `default-features = false`, you need to explicitly include
+ the `crypto-nettle` feature to enable it.
+
+ - The Windows Cryptography API: Next Generation (CNG). To select
+ this backend, use `default-features = false`, and explicitly
+ include the `crypto-cng` feature to enable it. Currently, the CNG
+ backend requires at least Windows 10.
## Compression algorithms