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diff --git a/deps/openssl/openssl/doc/man3/EVP_chacha20.pod b/deps/openssl/openssl/doc/man3/EVP_chacha20.pod
new file mode 100644
index 0000000000..96da825cde
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+++ b/deps/openssl/openssl/doc/man3/EVP_chacha20.pod
@@ -0,0 +1,57 @@
+=pod
+
+=head1 NAME
+
+EVP_chacha20,
+EVP_chacha20_poly1305
+- EVP ChaCha20 stream cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_chacha20(void)
+ const EVP_CIPHER *EVP_chacha20_poly1305(void)
+
+=head1 DESCRIPTION
+
+The ChaCha20 stream cipher for EVP.
+
+=over 4
+
+=item EVP_chacha20()
+
+The ChaCha20 stream cipher. The key length is 256 bits, the IV is 96 bits long.
+
+=item EVP_chacha20_poly1305()
+
+Authenticated encryption with ChaCha20-Poly1305. Like EVP_chacha20(), the key
+is 256 bits and the IV is 96 bits. This supports additional authenticated data
+(AAD) and produces a 128-bit authentication tag. See the
+L<EVP_EncryptInit(3)/AEAD Interface> section for more information.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+