Added eel and eapml in EWF libraries.

Removed them from gitmodule

library/crypto/eel/modes/ofb_decryption.e

@@ -0,0 +1,55 @@
+note
+	description: "Output Feedback decryption mode"
+	author: "Colin LeMahieu"
+	date: "$Date$"
+	revision: "$Revision$"
+	quote: "Sometimes it is said that man cannot be trusted with the government of himself. Can he, then, be trusted with the government of others? - Thomas Jefferson (1801)"
+
+class
+	OFB_DECRYPTION
+
+inherit
+	ARRAY_FACILITIES
+
+create
+	make
+
+feature
+	make (target_a: OFB_TARGET iv: SPECIAL [NATURAL_8] iv_offset: INTEGER_32)
+		require
+			iv.valid_index (iv_offset)
+			iv.valid_index (iv_offset + target_a.block_size - 1)
+		do
+			target := target_a
+			create last.make_filled (0, block_size)
+			last.copy_data (iv, iv_offset, 0, block_size)
+		end
+
+feature
+	block_size: INTEGER_32
+		do
+			result := target.block_size
+		end
+
+	decrypt_block (in: SPECIAL [NATURAL_8] in_offset: INTEGER_32 out_array: SPECIAL [NATURAL_8] out_offset: INTEGER_32)
+		require
+			ofb_ready
+			in.valid_index (in_offset)
+			in.valid_index (in_offset + block_size - 1)
+			out_array.valid_index (out_offset)
+			out_array.valid_index (out_offset + block_size - 1)
+		do
+			target.encrypt_block (last, 0, out_array, out_offset)
+			last.copy_data (out_array, out_offset, 0, block_size)
+			array_xor (last, 0, in, in_offset, out_array, out_offset, block_size)
+		end
+
+	ofb_ready: BOOLEAN
+		do
+			result := target.ofb_ready
+		end
+
+feature {NONE}
+	last: SPECIAL [NATURAL_8]
+	target: OFB_TARGET
+end