corrected latitude - определение. Что такое corrected latitude
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Что (кто) такое corrected latitude - определение

BLOCK CIPHER
Corrected Block TEA; Corrected BTEA
  • center
Найдено результатов: 245
latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
(latitudes)
1.
The latitude of a place is its distance from the equator. Compare longitude
.
In the middle to high latitudes rainfall has risen steadily over the last 20-30 years.
N-VAR
Latitude is also an adjective.
The army must cease military operations above 36 degrees latitude north.
ADJ: usu amount ADJ
2.
Latitude is freedom to choose the way in which you do something. (FORMAL)
He would be given every latitude in forming a new government...
N-UNCOUNT
Latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
·noun Extent; size; amplitude; scope.
II. Latitude ·noun The angular distance of a heavenly body from the ecliptic.
III. Latitude ·noun Distance north or south of the equator, measured on a meridian.
IV. Latitude ·noun Extent from side to side, or distance sidewise from a given point or line; breadth; width.
V. Latitude ·noun Room; space; freedom from confinement or restraint; hence, looseness; laxity; independence.
VI. Latitude ·noun Extent or breadth of signification, application, ·etc.; extent of deviation from a standard, as truth, style, ·etc.
Latitudinal         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
·adj Of or pertaining to latitude; in the direction of latitude.
Latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
In geography, latitude is a coordinate that specifies the north–south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pole, with 0° at the Equator.
latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
n.
freedom of action
1) to allow smb. latitude in (we are allowed quite a bit of latitude in selecting our subjects)
distance measured in degrees north or south of the equator
2) high; low latitudes
3) at a latitude (at a latitude of ten degrees north)
latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
Distance north or south of the equator.
latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
n.
1.
Extent, range, scope, amplitude, compass.
2.
Freedom, liberty, indulgence, free play.
3.
Laxity, loose interpretation, indefinite meaning.
4.
(Geog.) Angular distance from the equator.
5.
(Astron.) Angular distance from the ecliptic.
geocentric latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
¦ noun the latitude at which a planet would appear if viewed from the centre of the earth.
latitude         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
['lat?tju:d]
¦ noun
1. the angular distance of a place north or south of the equator.
2. (latitudes) regions with reference to their temperature and distance from the equator: northern latitudes.
3. scope for freedom of action or thought.
Derivatives
latitudinal adjective
latitudinally adverb
Origin
ME: from L. latitudo 'breadth', from latus 'broad'.
latitudes         
  • right
  • The orientation of the Earth at the December solstice.
  • A sphere of radius ''a'' compressed along the ''z'' axis to form an oblate ellipsoid of revolution.
  • β}}) on the ellipsoid.
  • P(''u'',''β'',''λ'')}}
  • P(''r'',''θ''′,''λ'')}}
  • θ}}).
  • P(''ɸ'',''λ'',''h'')}}
  • Geoid
}}
  • 200px
  • 200px
THE ANGLE BETWEEN ZENITH AND A PLANE PARALLEL TO THE EQUATOR
Latitudes; Latetude; Lattitude; Latitudinal; Planetocentric Latitude; Latittude; Geographic latitude; Authalic latitude; North latitude; South latitude; Geographic Latitude; Length of a degree of latitude; Isometric latitude; Astronomical latitude; Rectifying latitude; Conformal latitude; Geocentric latitude; Astronomic latitude; Geodetic Latitude; Parametric latitude; Reduced latitude; Ellipsoidal-harmonic coordinates; Latitude determination; Terran latitude
regions with reference to their temperature and distance from the equator:

Википедия

XXTEA

In cryptography, Corrected Block TEA (often referred to as XXTEA) is a block cipher designed to correct weaknesses in the original Block TEA.

XXTEA is vulnerable to a chosen-plaintext attack requiring 259 queries and negligible work. See cryptanalysis below.

The cipher's designers were Roger Needham and David Wheeler of the Cambridge Computer Laboratory, and the algorithm was presented in an unpublished technical report in October 1998 (Wheeler and Needham, 1998). It is not subject to any patents.

Formally speaking, XXTEA is a consistent incomplete source-heavy heterogeneous UFN (unbalanced Feistel network) block cipher. XXTEA operates on variable-length blocks that are some arbitrary multiple of 32 bits in size (minimum 64 bits). The number of full cycles depends on the block size, but there are at least six (rising to 32 for small block sizes). The original Block TEA applies the XTEA round function to each word in the block and combines it additively with its leftmost neighbour. Slow diffusion rate of the decryption process was immediately exploited to break the cipher. Corrected Block TEA uses a more involved round function which makes use of both immediate neighbours in processing each word in the block.

XXTEA is likely to be more efficient than XTEA for longer messages.

Needham & Wheeler make the following comments on the use of Block TEA:

For ease of use and general security the large block version is to be preferred when applicable for the following reasons.

  • A single bit change will change about one half of the bits of the entire block, leaving no place where the changes start.
  • There is no choice of mode involved.
  • Even if the correct usage of always changing the data sent (possibly by a message number) is employed, only identical messages give the same result and the information leakage is minimal.
  • The message number should always be checked as this redundancy is the check against a random message being accepted.
  • Cut and join attacks do not appear to be possible.
  • If it is not acceptable to have very long messages, they can be broken into chunks say of 60 words and chained analogously to the methods used for DES.

However, due to the incomplete nature of the round function, two large ciphertexts of 53 or more 32-bit words identical in all but 12 words can be found by a simple brute-force collision search requiring 296−N memory, 2N time and 2N+296−N chosen plaintexts, in other words with a total time*memory complexity of 296, which is actually 2wordsize*fullcycles/2 for any such cipher. It is currently unknown if such partial collisions pose any threat to the security of the cipher. Eight full cycles would raise the bar for such collision search above complexity of parallel brute-force attacks.

The unusually small size of the XXTEA algorithm would make it a viable option in situations where there are extreme constraints e.g. legacy hardware systems (perhaps embedded) where the amount of available RAM is minimal, or alternatively single-board computers such as the Raspberry Pi, Banana Pi or Arduino.