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- Srm_(Unix) abstract "srm (or Secure Remove) is a secure file removal utility for Unix and Unix-like computer systems, such as Mac OS X or Linux respectively. It is a command line utility which (by default) exercises the Gutmann 35-pass algorithm for secure file deletion. There are two significant differences between srm on Mac OS X and on other Unix systems, including Linux. First, files stored on a partition using Apple Computer's HFS or HFS Plus filesystem formats may have a resource fork which must also be securely deleted; Apple has modified the standard srm to perform this function on its systems. Second, Mac OS X interfaces to srm, such as the "Secure Empty Trash" menu item in the Finder, use the DOD-recommended 7-pass algorithm, although srm uses the 35-pass version by default.For most purposes, srm with a single erase pass on small, modern, high-density hard drives is probably "secure" in the intended sense of the word — files so obliterated from the disk surface are beyond the resources of private companies or individuals to recover. However, data recovery techniques used by governments, such as intelligence agencies, remain a matter for deep speculation. It is probably best to remain agnostic on the issue of potential data recovery by deep pocket enterprises, especially since the well-studied Gutmann algorithm has not been modified for years. One school of thought maintains that the Gutmann algorithm has not been correctly implemented unless the order of the 35 overwrite pattern passes has been randomized.[citation needed]It is the inability of the hard drive read/write mechanism to maintain exact registration over a physical bit of recorded data that allows both the possibility of data recovery, and Gutmann's ingenious reply to this weakness. The 35-pass algorithm in effect uses the sloppiness of the hard drive to blur out its own errors. In theory, greater precision by better drives only improves the effectiveness of srm. However, srm has a limited effective domain — magnetic and solid-state media — and probably should not be relied upon in other recordable media contexts, such as optical drives, without further study.The US government recommends complete physical destruction of hard disk data surfaces to guarantee secure data erasure. Presumably, this can be accomplished by abrasion, or by a small amount of thermite ignited over a large, well-ventilated pot containing sand.The ATA Specification includes the Secure Erase command, which is implemented in all hard drives manufactured after 2001.".
- Srm_(Unix) thumbnail Secure_remove.png?width=300.
- Srm_(Unix) wikiPageExternalLink srm.1.html.
- Srm_(Unix) wikiPageExternalLink srm.sourceforge.net.
- Srm_(Unix) wikiPageExternalLink secure_del.html.
- Srm_(Unix) wikiPageExternalLink src.
- Srm_(Unix) wikiPageID "4629755".
- Srm_(Unix) wikiPageRevisionID "592890715".
- Srm_(Unix) caption "srm securely erasing a text file.".
- Srm_(Unix) hasPhotoCollection Srm_(Unix).
- Srm_(Unix) name "Secure Remove".
- Srm_(Unix) screenshot "250".
- Srm_(Unix) subject Category:Data_erasure.
- Srm_(Unix) subject Category:OS_X_security_software.
- Srm_(Unix) subject Category:Unix_file_system-related_software.
- Srm_(Unix) subject Category:Unix_security-related_software.
- Srm_(Unix) type Abstraction100002137.
- Srm_(Unix) type Code106355894.
- Srm_(Unix) type CodingSystem106353757.
- Srm_(Unix) type Communication100033020.
- Srm_(Unix) type Software106566077.
- Srm_(Unix) type Writing106359877.
- Srm_(Unix) type WrittenCommunication106349220.
- Srm_(Unix) type Software.
- Srm_(Unix) type Work.
- Srm_(Unix) type CreativeWork.
- Srm_(Unix) type InformationEntity.
- Srm_(Unix) comment "srm (or Secure Remove) is a secure file removal utility for Unix and Unix-like computer systems, such as Mac OS X or Linux respectively. It is a command line utility which (by default) exercises the Gutmann 35-pass algorithm for secure file deletion. There are two significant differences between srm on Mac OS X and on other Unix systems, including Linux.".
- Srm_(Unix) label "Srm (Unix)".
- Srm_(Unix) sameAs m.0cdhxz.
- Srm_(Unix) sameAs Q15524791.
- Srm_(Unix) sameAs Q15524791.
- Srm_(Unix) sameAs Srm_(Unix).
- Srm_(Unix) wasDerivedFrom Srm_(Unix)?oldid=592890715.
- Srm_(Unix) depiction Secure_remove.png.
- Srm_(Unix) isPrimaryTopicOf Srm_(Unix).
- Srm_(Unix) name "Secure Remove".
