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@@ -160,6 +160,13 @@ In particular, XTS-AES-128 (B<EVP_aes_128_xts>) takes input of a 256-bit key to
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achieve AES 128-bit security, and XTS-AES-256 (B<EVP_aes_256_xts>) takes input
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of a 512-bit key to achieve AES 256-bit security.
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The XTS implementation in OpenSSL does not support streaming. That is there must
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only be one L<EVP_EncryptUpdate(3)> call per L<EVP_EncryptInit_ex(3)> call (and
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similarly with the "Decrypt" functions).
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The I<iv> parameter to L<EVP_EncryptInit_ex(3)> or L<EVP_DecryptInit_ex(3)> is
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the XTS "tweak" value.
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=back
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=head1 RETURN VALUES
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