DE2843583C2 - Verfahren für den zugriffsicheren Nachrichtenverkehr über einen ungesicherten Nachrichtenübertragungskanal - Google Patents
Verfahren für den zugriffsicheren Nachrichtenverkehr über einen ungesicherten NachrichtenübertragungskanalInfo
- Publication number
- DE2843583C2 DE2843583C2 DE2843583A DE2843583A DE2843583C2 DE 2843583 C2 DE2843583 C2 DE 2843583C2 DE 2843583 A DE2843583 A DE 2843583A DE 2843583 A DE2843583 A DE 2843583A DE 2843583 C2 DE2843583 C2 DE 2843583C2
- Authority
- DE
- Germany
- Prior art keywords
- message
- register
- recipient
- mod
- key
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/08—Randomization, e.g. dummy operations or using noise
Description
(mit/ = 1,2,...W),
(fur;= 1,2 η)
Wählt man m so, daß
= 3797
O | H (in binä | A' | ρ | 0 | = 7 | |
411 | 1 | rer Form | 0 + 7 | = 21 | ||
■>> 2 | 0011! | 1 | •7+14 | = 3 mod 23 | ||
3 | 00011 | 14 | 21+5 | |||
00001 | 5 | |||||
00000 | 10 | |||||
ment wird zunächst auf 0 eingestellt. Die Verzögerung repräsentiert das binäre Übertragbit. Das UND-Gatter 61 bestimmt, ob das Obertragbit eine 1 sein soll, auf der Grundlage, daß p/und z, beide den Wert 1 haben, und das UND-Gatter 62 bestimmt, ob das Übertragbit eine 1 sein muß, auf der Basis der Tatsache, daß das vorherige Obertragbit eine 1 war, und daß eine der Größen p, und Zi den Wert 1 haben. Wenn eine dieser beiden Bedingungen zutrifft, liefert das Gatter 63 das Ausgangssignal 1, das eine Übertragung zur nächsten Stufe anzeigt Die beiden Exklusiv-ODER-Gatter 64 und 65 bestimmen das /-te Bit der Summe s, als die Modulo-2-Summe von p,und z.und das Übertragbit aus der vorausgehenden Stufe. Die Verzögerungseinrichtung 66 speichert das vorausgehende Ubertragbit
1110 | 1000 | 1 | 1 |
0110 | 0100 | 0 | 1 |
65 0010 | _ | Ende |
= 15
= 3*5
(12)
(13)
ffa,<m
/ | S (in binärer | R | 1 | H |
Torrn) | 1 | |||
0 | 10010 | 3 | 7 | |
1 | 01001 | 3 | 3 | |
2 | 00100 | 3 | 9 | |
3 | 00010 | 18 | 12 | |
4 | 00001 | 6 | ||
5 | 00000 | 13 |
;' | Z | ß | in | W | A/ |
0 | 10 | 6 | 8 | 16 | 1 |
1 | 9 | 2 | 4 | 16 | 1 |
2 | 1 | 4 | 2 | 1 | 0 |
3 | 1 | 16 | 1 | 1 | 0 |
4 | 1 | '/2 |
„-1
und
gelten, in denen
und dieser Wert bestimmt b\. Dieses Verfahren wird fortgesetzt, um sämtliche Koeffizienten bj zu ermitteln.
10 | 10 | 6 |
12 | 12 | 2 |
18 | 18 |
(40)
(41)
(42)
Claims (3)
(* = Vektorprodukt)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/839,939 US4218582A (en) | 1977-10-06 | 1977-10-06 | Public key cryptographic apparatus and method |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2843583A1 DE2843583A1 (de) | 1979-05-10 |
DE2843583C2 true DE2843583C2 (de) | 1982-06-03 |
Family
ID=25281034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2843583A Expired DE2843583C2 (de) | 1977-10-06 | 1978-10-05 | Verfahren für den zugriffsicheren Nachrichtenverkehr über einen ungesicherten Nachrichtenübertragungskanal |
Country Status (13)
Country | Link |
---|---|
US (1) | US4218582A (de) |
JP (1) | JPS5950068B2 (de) |
AU (1) | AU519184B2 (de) |
BE (1) | BE871039A (de) |
CA (1) | CA1128159A (de) |
CH (1) | CH634161A5 (de) |
DE (1) | DE2843583C2 (de) |
ES (1) | ES474539A1 (de) |
FR (1) | FR2405532B1 (de) |
GB (1) | GB2006580B (de) |
IT (1) | IT1099780B (de) |
NL (1) | NL7810063A (de) |
SE (1) | SE439225B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3439120A1 (de) * | 1984-10-25 | 1986-05-07 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Verfahren zur identifizierung einer teilnehmerstation eines fernmeldenetzes |
DE19648824A1 (de) * | 1996-11-26 | 1998-05-28 | Alsthom Cge Alcatel | Verfahren zum gesicherten Nachrichtenaustausch bei Massendiensten, sowie Teilnehmereinrichtung und Diensteanbietereinrichtung hierfür |
Families Citing this family (401)
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US4399323A (en) * | 1981-02-09 | 1983-08-16 | Bell Telephone Laboratories, Incorporated | Fast real-time public key cryptography |
US4471164A (en) * | 1981-10-13 | 1984-09-11 | At&T Bell Laboratories | Stream cipher operation using public key cryptosystem |
US4670857A (en) * | 1981-10-26 | 1987-06-02 | Rackman Michael I | Cartridge-controlled system whose use is limited to authorized cartridges |
US4503287A (en) * | 1981-11-23 | 1985-03-05 | Analytics, Inc. | Two-tiered communication security employing asymmetric session keys |
EP0085130A1 (de) * | 1982-02-02 | 1983-08-10 | Omnet Associates | Verfahren und Einrichtung zur Aufrechterhaltung der Geheimhaltung von durch öffentliche Übertragung übermittelten Nachrichten |
NL8201077A (nl) * | 1982-03-16 | 1983-10-17 | Philips Nv | Kommunikatiesysteem, bevattende een centrale dataverwerkende inrichting, toegangsstations en externe stations, waarbij een kryptografische kontrole is voorzien op vervalsing van een extern station, alsmede externe stations voor gebruik in zo een kommunikatiesysteem. |
US4668103A (en) * | 1982-04-30 | 1987-05-26 | Wilson William J | Polygraphic encryption-decryption communications system |
US4757468A (en) * | 1982-09-22 | 1988-07-12 | Intel Corporation | Authenticated read-only memory |
JPS59226935A (ja) * | 1983-06-01 | 1984-12-20 | アメリカン・エクスプレス・カンパニ− | 携帯用情報カ−ドの保護装置 |
US4658093A (en) * | 1983-07-11 | 1987-04-14 | Hellman Martin E | Software distribution system |
US4759063A (en) * | 1983-08-22 | 1988-07-19 | Chaum David L | Blind signature systems |
DK152239C (da) * | 1983-12-30 | 1988-07-04 | Sp Radio As | Fremgangsmaade til kryptografisk overfoering af talesignaler og kommunikationsstation til udoevelse af fremgangsmaaden |
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US5226136A (en) * | 1986-05-06 | 1993-07-06 | Nintendo Company Limited | Memory cartridge bank selecting apparatus |
US4731841A (en) * | 1986-06-16 | 1988-03-15 | Applied Information Technologies Research Center | Field initialized authentication system for protective security of electronic information networks |
EP0257585B1 (de) * | 1986-08-22 | 1992-11-25 | Nec Corporation | Schlüsselverteilungsverfahren |
EP0566215B1 (de) * | 1986-09-30 | 1996-11-20 | Canon Kabushiki Kaisha | Fehlerkorrekturgerät |
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US4891781A (en) * | 1987-03-04 | 1990-01-02 | Cylink Corporation | Modulo arithmetic processor chip |
US4841570A (en) * | 1987-05-11 | 1989-06-20 | The United States Of America As Represented By The United States Department Of Energy | One-way transformation of information |
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US5201000A (en) * | 1991-09-27 | 1993-04-06 | International Business Machines Corporation | Method for generating public and private key pairs without using a passphrase |
NZ240019A (en) * | 1991-09-30 | 1996-04-26 | Peter John Smith | Public key encrypted communication with non-multiplicative cipher |
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US10361802B1 (en) | 1999-02-01 | 2019-07-23 | Blanding Hovenweep, Llc | Adaptive pattern recognition based control system and method |
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-
1977
- 1977-10-06 US US05/839,939 patent/US4218582A/en not_active Expired - Lifetime
-
1978
- 1978-10-03 GB GB7839175A patent/GB2006580B/en not_active Expired
- 1978-10-04 AU AU40418/78A patent/AU519184B2/en not_active Expired
- 1978-10-05 FR FR7828474A patent/FR2405532B1/fr not_active Expired
- 1978-10-05 CA CA312,733A patent/CA1128159A/en not_active Expired
- 1978-10-05 DE DE2843583A patent/DE2843583C2/de not_active Expired
- 1978-10-05 NL NL7810063A patent/NL7810063A/xx not_active Application Discontinuation
- 1978-10-05 CH CH1036378A patent/CH634161A5/fr not_active IP Right Cessation
- 1978-10-05 BE BE190932A patent/BE871039A/xx not_active IP Right Cessation
- 1978-10-06 ES ES474539A patent/ES474539A1/es not_active Expired
- 1978-10-06 IT IT28508/78A patent/IT1099780B/it active
- 1978-10-06 JP JP53124063A patent/JPS5950068B2/ja not_active Expired
- 1978-10-06 SE SE7810478A patent/SE439225B/sv not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3439120A1 (de) * | 1984-10-25 | 1986-05-07 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Verfahren zur identifizierung einer teilnehmerstation eines fernmeldenetzes |
DE19648824A1 (de) * | 1996-11-26 | 1998-05-28 | Alsthom Cge Alcatel | Verfahren zum gesicherten Nachrichtenaustausch bei Massendiensten, sowie Teilnehmereinrichtung und Diensteanbietereinrichtung hierfür |
Also Published As
Publication number | Publication date |
---|---|
GB2006580B (en) | 1982-08-18 |
AU4041878A (en) | 1980-04-17 |
BE871039A (fr) | 1979-04-05 |
JPS5488703A (en) | 1979-07-14 |
FR2405532B1 (fr) | 1985-10-11 |
US4218582A (en) | 1980-08-19 |
IT1099780B (it) | 1985-09-28 |
SE7810478L (sv) | 1979-04-07 |
JPS5950068B2 (ja) | 1984-12-06 |
IT7828508A0 (it) | 1978-10-06 |
AU519184B2 (en) | 1981-11-12 |
CA1128159A (en) | 1982-07-20 |
NL7810063A (nl) | 1979-04-10 |
ES474539A1 (es) | 1980-04-16 |
DE2843583A1 (de) | 1979-05-10 |
GB2006580A (en) | 1979-05-02 |
SE439225B (sv) | 1985-06-03 |
FR2405532A1 (fr) | 1979-05-04 |
CH634161A5 (fr) | 1983-01-14 |
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