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16 lines
785 B
Plaintext
16 lines
785 B
Plaintext
Default behavior changes
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* In TLS clients, if mbedtls_ssl_set_hostname() has not been called,
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mbedtls_ssl_handshake() now fails with
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MBEDTLS_ERR_SSL_CERTIFICATE_VERIFICATION_WITHOUT_HOSTNAME
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if certificate-based authentication of the server is attempted.
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This is because authenticating a server without knowing what name
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to expect is usually insecure.
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Security
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* Note that TLS clients should generally call mbedtls_ssl_set_hostname()
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if they use certificate authentication (i.e. not pre-shared keys).
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Otherwise, in many scenarios, the server could be impersonated.
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The library will now prevent the handshake and return
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MBEDTLS_ERR_SSL_CERTIFICATE_VERIFICATION_WITHOUT_HOSTNAME
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if mbedtls_ssl_set_hostname() has not been called.
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