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The code that you write for Cryptography workbook should all be in the .py file and not in IDLE. 16 0 obj @� [��( {��ao �� �#`5!A�@57�l��D��?�l�$$�t$6�^�n��ₜ�J� c���$�����ʢ��G`(�*x�%��(�30��b��@pX2��A�5�g`�������1���:�v"�4,�N�,H,J��$���>-g`��d`� �]�fl�g�qb``����g5��'���{���300�a`8� !e� Note: I have previously written about the common scenarios of these attacks. Classical cryptography mainly includes the following aspects: Modern cryptography originated from a large number of related theories in the middle and late 20th century. 13 0 obj ��yQ�J���T�=~��KpƩ,�����dMO*8PA� ��Y�/�Ե�̨L��:[�.`�M��ע��jr��ּ�/].�P�gF�S�S����}u��q��i�٥ǔ,߫kVs��:c�. 449 x��wTS��Ͻ7��" %�z �;HQ�I�P��&vDF)VdT�G�"cE��b� �P��QDE�݌k �5�ޚ��Y�����g�}׺ P���tX�4�X���\���X��ffG�D���=���HƳ��.�d��,�P&s���"7C$ stream {< ̻(�����x�x7< �#�;,��K.

Serious Cryptography was written by one of the foremost experts in applied cryptography, but it’s not targeted at other experts. [In-depth cryptography - Principles and Applications of Common Encryption Technologies] (.

本页面的全部内容在 CC BY-NC-SA 4.0 协议之条款下提供,附加条款亦可能应用。, Offline Attack and Defense Experience Summary, Commonly Used Coding in the Communication Field, Commonly Used Encodings in the Real World, Cryptographic Security Pseudo-random Number Generator, Software Reverse Engineering Introduction, Common Encryption Algorithms and Code Recognition, Manually Find the IAT and Rebuild It Using ImportREC, Basic Functions in the heap implementation, Introduction to The Principle of Integer Overflow, http://open.163.com/special/Khan/moderncryptography.html, https://github.com/yuankeyang/python/blob/master/%E3%80%8A%E6%B7%B1%E5%85%A5, https://en.wikipedia.org/wiki/%E5%AF%86%E7%A0%81%E5%AD%A6.

• Symmetric encryption is fast and secure, and is used whenever there is a viable method of sharing a key Symmetric Encryption Secret Key or Shared Secret • A sequence of bytes, often printable ascii, used to both encrypt and decrypt a message Pre-shared Secret • A secret key which

(*a``L���K Digital Signature, represented by RSA signature, ElGamal signature, and DSA signature. %PDF-1.3 << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 1920 1080] In 1949, Shan Shan published a classic paper entitled "Communication Theory of Security Systems", marking the beginning of modern cryptography. He used it to protect the messages he sent to his army. 6 0 obj �Wx��789�|Y�� ���5�#�2V�PV��Y�R�ȈM��vj�� ɮ�_I�1Q�X�{�zBt��VR�?VcF�.��p~�L�����>��-���0̈́yH&��TL�d{b���ɓlF�Pq&��S9o��h;�*1��W�c��}�$׋6H&S�W�B���+hҔ�/�K,�o�+����:�a�Ȉwct� Modern cryptography mainly includes the following aspects: Among them, the symmetric encryption system is mainly divided into two ways: In general, the fundamental goal of password designers is to protect information and information systems. Cryptography can generally be divided into classical cryptography and modern cryptography. /Tc3 11 0 R /Tc1 9 0 R /Tc2 10 0 R >> >> It starts the process as soon as the user executes the malicious file (a pdf exploit for example). 336

It is recommended to consider whether to buy a book in the case of reading the open class and simply looking at the e-book, because the book is usually left unused. h�bbd```b``K���@$��d���Z ��3�t�v0�D ߏƿ'� Zk�!� $l$T����4Q��Ot"�y�\b)���A�I&N�I�$R$)���TIj"]&=&�!��:dGrY@^O�$� _%�?P�(&OJEB�N9J�@y@yC�R �n�X����ZO�D}J}/G�3���ɭ���k��{%O�חw�_.�'_!J����Q�@�S���V�F��=�IE���b�b�b�b��5�Q%�����O�@��%�!BӥyҸ�M�:�e�0G7��ӓ����� e%e[�(����R�0`�3R��������4�����6�i^��)��*n*|�"�f����LUo�՝�m�O�0j&jaj�j��.��ϧ�w�ϝ_4����갺�z��j���=���U�4�5�n�ɚ��4ǴhZ�Z�Z�^0����Tf%��9�����-�>�ݫ=�c��Xg�N��]�. The paper Quantum Cryptography with Entangled Photons [1] sets out to create the first fully realized implementation of a quantum key distribution (QKD) system. E�6��S��2����)2�12� ��"�įl���+�ɘ�&�Y��4���Pޚ%ᣌ�\�%�g�|e�TI� ��(����L 0�_��&�l�2E�� ��9�r��9h� x�g��Ib�טi���f��S�b1+��M�xL����0��o�E%Ym�h�����Y��h����~S�=�z�U�&�ϞA��Y�l�/� �$Z����U �m@��O� � �ޜ��l^���'���ls�k.+�7���oʿ�9�����V;�?�#I3eE妧�KD����d�����9i���,�����UQ� ��h��6'~�khu_ }�9P�I�o= C#$n?z}�[1

endstream Hash function, represented by MD5, SHA-1, SHA-512, etc. 8 0 obj 675 0 obj <> endobj

�FV>2 u�����/�_$\�B�Cv�< 5]�s.,4�&�y�Ux~xw-bEDCĻH����G��KwF�G�E�GME{E�EK�X,Y��F�Z� �={$vr����K���� endobj Visual Cryptography for Colored Images In (6), it was proposed for the very first time, the use of colored images in visual cryptography. Symmetric Cryptography, represented by DES, AES, and RC4. Among them, classical cryptography, as a practical art, its coding and deciphering usually depends on the creativity and skill of designers and adversaries, and does not clearly define the original cryptography. 7 0 obj

h�b```e``�"�N3�0 �P�����cT�Q���(��7�����3F9�fTy������f�� \:�����ն�-z�u�Qݩ`��kL��"�u�����i��n�2߱|�)r��c�̤���-��f~44iWYu�pYD�x|�~�#�de/V\[кS��za�%Wç�͵��0�9��� 15 0 obj

14 0 obj EN | ZH Cryptography can generally be divided into classical cryptography and modern cryptography..

2 0 obj endobj

[ /ICCBased 13 0 R ] Asymmetric Cryptography, represented by RSA, ElGamal, elliptic curve encryption. O*��?�����f�����`ϳ�g���C/����O�ϩ�+F�F�G�Gό���z����ˌ��ㅿ)����ѫ�~w��gb���k��?Jި�9���m�d���wi獵�ޫ�?�����c�Ǒ��O�O���?w| ��x&mf������ The authors claim to successfully distribute keys between two parties (Alice and Bob) through the implementation of two novel distribution schemes.

18 0 obj [7A�\�SwBOK/X/_�Q�>Q�����G�[��� �`�A�������a�a��c#����*�Z�;�8c�q��>�[&���I�I��MS���T`�ϴ�k�h&4�5�Ǣ��YY�F֠9�=�X���_,�,S-�,Y)YXm�����Ěk]c}džj�c�Φ�浭�-�v��};�]���N����"�&�1=�x����tv(��}�������'{'��I�ߝY�)� Σ��-r�q�r�.d.�_xp��Uە�Z���M׍�v�m���=����+K�G�ǔ����^���W�W����b�j�>:>�>�>�v��}/�a��v���������O8� � | Known plaintext attack | Have ciphertext and corresponding plaintext | XeroWare’s encryption algorithm is unique in the way it works. << /Length 16 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> Block Cipher, also known as block cipher. l��� ɸ�D��2M�����D&I��m`]�p�q}B�i%���q�������6�Qr���F�a�����0 Ps endobj

<< /Length 5 0 R /Filter /FlateDecode >> | Select ciphertext attack | Have decryption permission, can decrypt the ciphertext and get the corresponding plaintext |.

stream << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs2 8 0 R /Cs1 7 0 R >> /Font << Nor, for that matter, is it intended as a superficial overview of the field. Therefore, the amendment was made. ��K0ށi���A����B�ZyCAP8�C���@��&�*���CP=�#t�]���� 4�}���a � ��ٰ;G���Dx����J�>���� ,�_“@��FX�DB�X$!k�"��E�����H�q���a���Y��bVa�bJ0՘c�VL�6f3����bձ�X'�?v 6��-�V`�`[����a�;���p~�\2n5��׌���� �&�x�*���s�b|!� *�f��T��7^{�,�+7ƶ�0�;�gðzyL1��72bB�1���������~x��'-�D�PK���� g��rl����AE!f'��x�1�{A����D��^b�D�d��"��i-�܌E�8;�Ͽ�N�&�]�o?_��

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    serious cryptography pdf github

    As I continue to learn, I gradually realize that these types of attacks focus on describing the capabilities of attackers and may be applicable to a wide variety of scenarios.

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    x��Mk�@���������~�.�brH!����CCmM[��;njI�C�;����;� [� x����@W�/H�P���4�����p�����q �x���#�`:E��W8�f�/r(�Cc}Q�w�n��ҁc��G�|�rΎ��`��I���`~ƫ��c�u��HbD:F��+�Xɔ,��&���z��ܐ�H�9Q㉈�L 6�TF:�Q�4��u�I��>��ڼ�D�B�(A\߫��h���

    858 0 obj <>stream The basic idea behind the colored image cryptography remained the same however. endobj Of course, it is also possible to bypass the corresponding detection by constructing a false hash value or a digital signature. The paper proposed a k out of n c- color visual secret sharing system. Stream Cipher, also known as stream cipher. x}S[K�@~�_�=&Mgv�MD��G�( �p8�(4������nRl+&����|�٬q�5H^vZ>T6���+����m�"e���l���^���rdƊ� %PDF-1.5 %���� In general, we will assume that the attacker knows the cryptosystem to be cracked, and the attack types are usually divided into the following four types: | ciphertext attack | only has ciphertext | | Select plaintext attack | Have encryption permission, can encrypt the plaintext and get the corresponding ciphertext|

    0

    The code that you write for Cryptography workbook should all be in the .py file and not in IDLE. 16 0 obj @� [��( {��ao �� �#`5!A�@57�l��D��?�l�$$�t$6�^�n��ₜ�J� c���$�����ʢ��G`(�*x�%��(�30��b��@pX2��A�5�g`�������1���:�v"�4,�N�,H,J��$���>-g`��d`� �]�fl�g�qb``����g5��'���{���300�a`8� !e� Note: I have previously written about the common scenarios of these attacks. Classical cryptography mainly includes the following aspects: Modern cryptography originated from a large number of related theories in the middle and late 20th century. 13 0 obj ��yQ�J���T�=~��KpƩ,�����dMO*8PA� ��Y�/�Ե�̨L��:[�.`�M��ע��jr��ּ�/].�P�gF�S�S����}u��q��i�٥ǔ,߫kVs��:c�. 449 x��wTS��Ͻ7��" %�z �;HQ�I�P��&vDF)VdT�G�"cE��b� �P��QDE�݌k �5�ޚ��Y�����g�}׺ P���tX�4�X���\���X��ffG�D���=���HƳ��.�d��,�P&s���"7C$ stream {< ̻(�����x�x7< �#�;,��K.

    Serious Cryptography was written by one of the foremost experts in applied cryptography, but it’s not targeted at other experts. [In-depth cryptography - Principles and Applications of Common Encryption Technologies] (.

    本页面的全部内容在 CC BY-NC-SA 4.0 协议之条款下提供,附加条款亦可能应用。, Offline Attack and Defense Experience Summary, Commonly Used Coding in the Communication Field, Commonly Used Encodings in the Real World, Cryptographic Security Pseudo-random Number Generator, Software Reverse Engineering Introduction, Common Encryption Algorithms and Code Recognition, Manually Find the IAT and Rebuild It Using ImportREC, Basic Functions in the heap implementation, Introduction to The Principle of Integer Overflow, http://open.163.com/special/Khan/moderncryptography.html, https://github.com/yuankeyang/python/blob/master/%E3%80%8A%E6%B7%B1%E5%85%A5, https://en.wikipedia.org/wiki/%E5%AF%86%E7%A0%81%E5%AD%A6.

    • Symmetric encryption is fast and secure, and is used whenever there is a viable method of sharing a key Symmetric Encryption Secret Key or Shared Secret • A sequence of bytes, often printable ascii, used to both encrypt and decrypt a message Pre-shared Secret • A secret key which

    (*a``L���K Digital Signature, represented by RSA signature, ElGamal signature, and DSA signature. %PDF-1.3 << /Type /Page /Parent 3 0 R /Resources 6 0 R /Contents 4 0 R /MediaBox [0 0 1920 1080] In 1949, Shan Shan published a classic paper entitled "Communication Theory of Security Systems", marking the beginning of modern cryptography. He used it to protect the messages he sent to his army. 6 0 obj �Wx��789�|Y�� ���5�#�2V�PV��Y�R�ȈM��vj�� ɮ�_I�1Q�X�{�zBt��VR�?VcF�.��p~�L�����>��-���0̈́yH&��TL�d{b���ɓlF�Pq&��S9o��h;�*1��W�c��}�$׋6H&S�W�B���+hҔ�/�K,�o�+����:�a�Ȉwct� Modern cryptography mainly includes the following aspects: Among them, the symmetric encryption system is mainly divided into two ways: In general, the fundamental goal of password designers is to protect information and information systems. Cryptography can generally be divided into classical cryptography and modern cryptography. /Tc3 11 0 R /Tc1 9 0 R /Tc2 10 0 R >> >> It starts the process as soon as the user executes the malicious file (a pdf exploit for example). 336

    It is recommended to consider whether to buy a book in the case of reading the open class and simply looking at the e-book, because the book is usually left unused. h�bbd```b``K���@$��d���Z ��3�t�v0�D ߏƿ'� Zk�!� $l$T����4Q��Ot"�y�\b)���A�I&N�I�$R$)���TIj"]&=&�!��:dGrY@^O�$� _%�?P�(&OJEB�N9J�@y@yC�R �n�X����ZO�D}J}/G�3���ɭ���k��{%O�חw�_.�'_!J����Q�@�S���V�F��=�IE���b�b�b�b��5�Q%�����O�@��%�!BӥyҸ�M�:�e�0G7��ӓ����� e%e[�(����R�0`�3R��������4�����6�i^��)��*n*|�"�f����LUo�՝�m�O�0j&jaj�j��.��ϧ�w�ϝ_4����갺�z��j���=���U�4�5�n�ɚ��4ǴhZ�Z�Z�^0����Tf%��9�����-�>�ݫ=�c��Xg�N��]�. The paper Quantum Cryptography with Entangled Photons [1] sets out to create the first fully realized implementation of a quantum key distribution (QKD) system. E�6��S��2����)2�12� ��"�įl���+�ɘ�&�Y��4���Pޚ%ᣌ�\�%�g�|e�TI� ��(����L 0�_��&�l�2E�� ��9�r��9h� x�g��Ib�טi���f��S�b1+��M�xL����0��o�E%Ym�h�����Y��h����~S�=�z�U�&�ϞA��Y�l�/� �$Z����U �m@��O� � �ޜ��l^���'���ls�k.+�7���oʿ�9�����V;�?�#I3eE妧�KD����d�����9i���,�����UQ� ��h��6'~�khu_ }�9P�I�o= C#$n?z}�[1

    endstream Hash function, represented by MD5, SHA-1, SHA-512, etc. 8 0 obj 675 0 obj <> endobj

    �FV>2 u�����/�_$\�B�Cv�< 5]�s.,4�&�y�Ux~xw-bEDCĻH����G��KwF�G�E�GME{E�EK�X,Y��F�Z� �={$vr����K���� endobj Visual Cryptography for Colored Images In (6), it was proposed for the very first time, the use of colored images in visual cryptography. Symmetric Cryptography, represented by DES, AES, and RC4. Among them, classical cryptography, as a practical art, its coding and deciphering usually depends on the creativity and skill of designers and adversaries, and does not clearly define the original cryptography. 7 0 obj

    h�b```e``�"�N3�0 �P�����cT�Q���(��7�����3F9�fTy������f�� \:�����ն�-z�u�Qݩ`��kL��"�u�����i��n�2߱|�)r��c�̤���-��f~44iWYu�pYD�x|�~�#�de/V\[кS��za�%Wç�͵��0�9��� 15 0 obj

    14 0 obj EN | ZH Cryptography can generally be divided into classical cryptography and modern cryptography..

    2 0 obj endobj

    [ /ICCBased 13 0 R ] Asymmetric Cryptography, represented by RSA, ElGamal, elliptic curve encryption. O*��?�����f�����`ϳ�g���C/����O�ϩ�+F�F�G�Gό���z����ˌ��ㅿ)����ѫ�~w��gb���k��?Jި�9���m�d���wi獵�ޫ�?�����c�Ǒ��O�O���?w| ��x&mf������ The authors claim to successfully distribute keys between two parties (Alice and Bob) through the implementation of two novel distribution schemes.

    18 0 obj [7A�\�SwBOK/X/_�Q�>Q�����G�[��� �`�A�������a�a��c#����*�Z�;�8c�q��>�[&���I�I��MS���T`�ϴ�k�h&4�5�Ǣ��YY�F֠9�=�X���_,�,S-�,Y)YXm�����Ěk]c}džj�c�Φ�浭�-�v��};�]���N����"�&�1=�x����tv(��}�������'{'��I�ߝY�)� Σ��-r�q�r�.d.�_xp��Uە�Z���M׍�v�m���=����+K�G�ǔ����^���W�W����b�j�>:>�>�>�v��}/�a��v���������O8� � | Known plaintext attack | Have ciphertext and corresponding plaintext | XeroWare’s encryption algorithm is unique in the way it works. << /Length 16 0 R /N 3 /Alternate /DeviceRGB /Filter /FlateDecode >> Block Cipher, also known as block cipher. l��� ɸ�D��2M�����D&I��m`]�p�q}B�i%���q�������6�Qr���F�a�����0 Ps endobj

    << /Length 5 0 R /Filter /FlateDecode >> | Select ciphertext attack | Have decryption permission, can decrypt the ciphertext and get the corresponding plaintext |.

    stream << /ProcSet [ /PDF /Text ] /ColorSpace << /Cs2 8 0 R /Cs1 7 0 R >> /Font << Nor, for that matter, is it intended as a superficial overview of the field. Therefore, the amendment was made. ��K0ށi���A����B�ZyCAP8�C���@��&�*���CP=�#t�]���� 4�}���a � ��ٰ;G���Dx����J�>���� ,�_“@��FX�DB�X$!k�"��E�����H�q���a���Y��bVa�bJ0՘c�VL�6f3����bձ�X'�?v 6��-�V`�`[����a�;���p~�\2n5��׌���� �&�x�*���s�b|!� *�f��T��7^{�,�+7ƶ�0�;�gðzyL1��72bB�1���������~x��'-�D�PK���� g��rl����AE!f'��x�1�{A����D��^b�D�d��"��i-�܌E�8;�Ͽ�N�&�]�o?_��

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