Cygwin and OpenSSL Installation Guide provides instructions for installing Cygwin and OpenSSL on Windows. It explains what Cygwin and OpenSSL are, how to download and install Cygwin, including selecting necessary packages like gcc and make. It then explains what OpenSSL is and its implemented algorithms and standards. Finally, it outlines the steps to download the OpenSSL source code, compile and install it on Cygwin.

1. Cygwin and OpenSSL
Installation G id
I ll i Guide
Cygwin Installation
yg

2. What is Cygwin?
• Cygwin is a “free” Linux-like environment for Windows. It
consists of two parts:
– A DLL (cygwin1.dll) which acts as a Linux API
emulation layer providing substantial Linux API
functionality.
– A collection of tools which provide Linux look and feel.
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Cygwin Installation (1/13)
1. Browse http://www.cygwin.com/
2. Click the button “Install or update now! ”
3. Click the button “Run”
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3. Cygwin Installation (2/13)
Click the button “Next”.
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Cygwin Installation (3/13)
Select “Install from Internet” and then click the button “Next”.
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4. Cygwin Installation (4/13)
Select the root install directory (by default, C:cygwin) and then click the button
“Next”.
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Cygwin Installation (5/13)
Select local package directory and then click the button “Next”.
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5. Cygwin Installation (6/13)
Choose the connection method. In this example, “Direct Connection” is selected
and then the button “Next”.
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Cygwin Installation (7/13)
Choose a mirror site and the click the button “Next”.
(In this example, we chose http://ftp.daum.net)
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6. Cygwin Installation (8/13)
Select packages to install (See next slide).
By default, “setup.exe” will install only the packages in the Base category
and their dependencies, resulting in a minimal Cygwin installation.
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Cygwin Installation (9/13)
Minimal Cygwin installation will not include many commonly used tools such
as gcc (which you will find in the Devel category).
So, the following packages at miminum must be selected to install
“OpenSSL“ packages later on.
Category | Packages
- editor : vim (other editors available)
- devel : gcc-core ( gcc-mingw-core by default )
gcc-mingw-core,
gcc-g++ ( gcc-mingw-g++, by default)
make
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7. Cygwin Installation (10/13)
How to select the packages: if you click the “Skip” in the subtitle “New”, the
check-up mark (V) will be shown in “Bin”.
Select the minimum packages listed in the previous slide and then click the button
“Next”. 13
Cygwin Installation (11/13)
Finally, the selected packages is being installing from the download site.
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8. Cygwin Installation (12/13)
Cygwin setup is done.
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Cygwin Installation (13/13)
Run Cygwin by double-clicking “Cygwin” icon on the Windows Desktop or
“cygwin.bat” in the folder in which cygwin is installed.
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9. Cygwin Installation Check-up (1/3)
$ gcc --version
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Cygwin Installation Check-up (2/3)
$ make --version
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10. Cygwin Installation Check-up (3/3)
$ vi --version
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OpenSSL Installation
p

11. What is OpenSSL?
• “Free” library providing cryptographic functions
• The important feature is the complete implementation of
the protocols SSL and TLS
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Algorithms implemented
• Block ciphers: DES, 3DES, DESX, CAST, RC2, RC5,
IDEA, Blowfish
• stream cipher: RC4
cipher
• hash: MD2, MD4, MD5, SHA-1, RIPEMD 160, MDC2
• asymmetric cryptosystems: RSA, DSA, DH
• MAC: HMAC
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12. Standards implemented
• PKCS 1, PKCS 7, PKCS 8, PKCS10 and PKCS 12
• X509v3
• ASN 1 with DER encoding (n t complete)
ASN.1 ith nc din (not c mpl t )
• SSLv3 and TLSv1 (practically identical)
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OpenSSL Installation (1/8)
1. Browse http://www.openssl.org/
2. Click the button “Source ”.
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13. OpenSSL Installation (2/8)
Download the latest version of OpenSSL.
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OpenSSL Installation (3/8)
Copy the downloaded OpenSSL source into “home” subfolder of the folder where
“cygwin” is installed (eg, C:cygwinhome).
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14. OpenSSL Installation (4/8)
Run “cygwin” and then do the followings:
$ cd /home
$ tar zxvf openssl-x.x.x.tar.gz
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OpenSSL Installation (5/8)
$ cd /home/openssl-x.x.x
$ ./config
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15. OpenSSL Installation (6/8)
$ make
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OpenSSL Installation (7/8)
$ make test
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16. OpenSSL Installation (8/8)
$ make install
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Package Structure
~/openssl-x.x.x
/apps /crypto /ssl /include .... libssl.a
(openssl) libcrypto.a
• Check if the following three files show up.
– Execution file: openssl
– Library files: libssl.a, libcrypto.a
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