DE69725659D1 - Verfahren und Einrichtung zur Ablage eines in einem RSA-Kryptosystem benutzten Geheimschlüssels - Google Patents

Verfahren und Einrichtung zur Ablage eines in einem RSA-Kryptosystem benutzten Geheimschlüssels

Info

Publication number
DE69725659D1
DE69725659D1 DE69725659T DE69725659T DE69725659D1 DE 69725659 D1 DE69725659 D1 DE 69725659D1 DE 69725659 T DE69725659 T DE 69725659T DE 69725659 T DE69725659 T DE 69725659T DE 69725659 D1 DE69725659 D1 DE 69725659D1
Authority
DE
Germany
Prior art keywords
storing
secret key
key used
rsa cryptosystem
cryptosystem
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 - Fee Related
Application number
DE69725659T
Other languages
English (en)
Other versions
DE69725659T2 (de
Inventor
Masanori Obata
Hiroyuki Sugiyama
Moribumi Okukawa
Tatsuaki Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Application granted granted Critical
Publication of DE69725659D1 publication Critical patent/DE69725659D1/de
Publication of DE69725659T2 publication Critical patent/DE69725659T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/302—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the integer factorization problem, e.g. RSA or quadratic sieve [QS] schemes
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
DE69725659T 1996-07-26 1997-07-28 Verfahren und Einrichtung zur Ablage eines in einem RSA-Kryptosystem benutzten Geheimschlüssels Expired - Fee Related DE69725659T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP19799696 1996-07-26
JP19799696 1996-07-26
JP27473496 1996-10-17
JP27473496 1996-10-17

Publications (2)

Publication Number Publication Date
DE69725659D1 true DE69725659D1 (de) 2003-11-27
DE69725659T2 DE69725659T2 (de) 2004-07-29

Family

ID=26510705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69725659T Expired - Fee Related DE69725659T2 (de) 1996-07-26 1997-07-28 Verfahren und Einrichtung zur Ablage eines in einem RSA-Kryptosystem benutzten Geheimschlüssels

Country Status (3)

Country Link
US (1) US6072876A (de)
EP (1) EP0821504B1 (de)
DE (1) DE69725659T2 (de)

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Also Published As

Publication number Publication date
EP0821504A2 (de) 1998-01-28
US6072876A (en) 2000-06-06
EP0821504B1 (de) 2003-10-22
EP0821504A3 (de) 2000-12-06
DE69725659T2 (de) 2004-07-29

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