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diff --git a/src/lib/libcrypto/man/RC4.3 b/src/lib/libcrypto/man/RC4.3
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+.Dd $Mdocdate: November 5 2016 $
+.Dt RC4 3
+.Os
+.Sh NAME
+.Nm RC4_set_key ,
+.Nm RC4
+.Nd RC4 encryption
+.Sh SYNOPSIS
+.In openssl/rc4.h
+.Ft void
+.Fo RC4_set_key
+.Fa "RC4_KEY *key"
+.Fa "int len"
+.Fa "const unsigned char *data"
+.Fc
+.Ft void
+.Fo RC4
+.Fa "RC4_KEY *key"
+.Fa "unsigned long len"
+.Fa "const unsigned char *indata"
+.Fa "unsigned char *outdata"
+.Fc
+.Sh DESCRIPTION
+This library implements the alleged RC4 cipher, which is described for
+example in
+.%B Applied Cryptography .
+It is believed to be compatible with RC4[TM], a proprietary cipher of
+RSA Security Inc.
+.Pp
+RC4 is a stream cipher with variable key length.
+Typically, 128 bit (16 byte) keys are used for strong encryption, but
+shorter insecure key sizes have been widely used due to export
+restrictions.
+.Pp
+RC4 consists of a key setup phase and the actual encryption or
+decryption phase.
+.Pp
+.Fn RC4_set_key
+sets up the
+.Vt RC4_KEY
+.Fa key
+using the
+.Fa len
+bytes long key at
+.Fa data .
+.Pp
+.Fn RC4
+encrypts or decrypts the
+.Fa len
+bytes of data at
+.Fa indata
+using
+.Fa key
+and places the result at
+.Fa outdata .
+Repeated
+.Fn RC4
+calls with the same
+.Fa key
+yield a continuous key stream.
+.Pp
+Since RC4 is a stream cipher (the input is XOR'ed with a pseudo-random
+key stream to produce the output), decryption uses the same function
+calls as encryption.
+.Sh RETURN VALUES
+.Fn RC4_set_key
+and
+.Fn RC4
+do not return values.
+.Sh SEE ALSO
+.Xr blowfish 3 ,
+.Xr EVP_EncryptInit 3
+.Sh HISTORY
+.Fn RC4_set_key
+and
+.Fn RC4
+are available in all versions of SSLeay and OpenSSL.
+.Sh BUGS
+This cipher is broken and should no longer be used.

diff --git a/src/lib/libcrypto/man/RC4.3 b/src/lib/libcrypto/man/RC4.3 new file mode 100644 index 0000000000..2c631c36be --- /dev/null +++ b/src/lib/libcrypto/man/RC4.3
@@ -0,0 +1,79 @@
	1	.Dd $Mdocdate: November 5 2016 $
	2	.Dt RC4 3
	3	.Os
	4	.Sh NAME
	5	.Nm RC4_set_key ,
	6	.Nm RC4
	7	.Nd RC4 encryption
	8	.Sh SYNOPSIS
	9	.In openssl/rc4.h
	10	.Ft void
	11	.Fo RC4_set_key
	12	.Fa "RC4_KEY *key"
	13	.Fa "int len"
	14	.Fa "const unsigned char *data"
	15	.Fc
	16	.Ft void
	17	.Fo RC4
	18	.Fa "RC4_KEY *key"
	19	.Fa "unsigned long len"
	20	.Fa "const unsigned char *indata"
	21	.Fa "unsigned char *outdata"
	22	.Fc
	23	.Sh DESCRIPTION
	24	This library implements the alleged RC4 cipher, which is described for
	25	example in
	26	.%B Applied Cryptography .
	27	It is believed to be compatible with RC4[TM], a proprietary cipher of
	28	RSA Security Inc.
	29	.Pp
	30	RC4 is a stream cipher with variable key length.
	31	Typically, 128 bit (16 byte) keys are used for strong encryption, but
	32	shorter insecure key sizes have been widely used due to export
	33	restrictions.
	34	.Pp
	35	RC4 consists of a key setup phase and the actual encryption or
	36	decryption phase.
	37	.Pp
	38	.Fn RC4_set_key
	39	sets up the
	40	.Vt RC4_KEY
	41	.Fa key
	42	using the
	43	.Fa len
	44	bytes long key at
	45	.Fa data .
	46	.Pp
	47	.Fn RC4
	48	encrypts or decrypts the
	49	.Fa len
	50	bytes of data at
	51	.Fa indata
	52	using
	53	.Fa key
	54	and places the result at
	55	.Fa outdata .
	56	Repeated
	57	.Fn RC4
	58	calls with the same
	59	.Fa key
	60	yield a continuous key stream.
	61	.Pp
	62	Since RC4 is a stream cipher (the input is XOR'ed with a pseudo-random
	63	key stream to produce the output), decryption uses the same function
	64	calls as encryption.
	65	.Sh RETURN VALUES
	66	.Fn RC4_set_key
	67	and
	68	.Fn RC4
	69	do not return values.
	70	.Sh SEE ALSO
	71	.Xr blowfish 3 ,
	72	.Xr EVP_EncryptInit 3
	73	.Sh HISTORY
	74	.Fn RC4_set_key
	75	and
	76	.Fn RC4
	77	are available in all versions of SSLeay and OpenSSL.
	78	.Sh BUGS
	79	This cipher is broken and should no longer be used.