crypto.setEngine(engine[, flags])

• engine <string>

• flags <crypto.constants> 默认值：crypto.constants.ENGINE_METHOD_ALL

  ¥flags <crypto.constants> Default: crypto.constants.ENGINE_METHOD_ALL

为部分或所有 OpenSSL 功能（由标志选择）加载并设置 engine。从 OpenSSL 3 开始，OpenSSL 不再支持自定义引擎。

¥Load and set the engine for some or all OpenSSL functions (selected by flags). Support for custom engines in OpenSSL is deprecated from OpenSSL 3.

engine 可以是 id 或引擎共享库的路径。

¥engine could be either an id or a path to the engine's shared library.

可选的 flags 参数默认使用 ENGINE_METHOD_ALL。flags 是采用以下标志之一或混合的位字段（在 crypto.constants 中定义）：

¥The optional flags argument uses ENGINE_METHOD_ALL by default. The flags is a bit field taking one of or a mix of the following flags (defined in crypto.constants):

• crypto.constants.ENGINE_METHOD_RSA

• crypto.constants.ENGINE_METHOD_DSA

• crypto.constants.ENGINE_METHOD_DH

• crypto.constants.ENGINE_METHOD_RAND

• crypto.constants.ENGINE_METHOD_EC

• crypto.constants.ENGINE_METHOD_CIPHERS

• crypto.constants.ENGINE_METHOD_DIGESTS

• crypto.constants.ENGINE_METHOD_PKEY_METHS

• crypto.constants.ENGINE_METHOD_PKEY_ASN1_METHS

• crypto.constants.ENGINE_METHOD_ALL

• crypto.constants.ENGINE_METHOD_NONE